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  Subjects -> ELECTRONICS (Total: 188 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
Acta Electronica Malaysia     Open Access  
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 7)
Advances in Electronics     Open Access   (Followers: 94)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Power Electronics     Open Access   (Followers: 39)
Advancing Microelectronics     Hybrid Journal  
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 344)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 26)
Annals of Telecommunications     Hybrid Journal   (Followers: 9)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 9)
Archives of Electrical Engineering     Open Access   (Followers: 14)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 8)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 30)
Bioelectronics in Medicine     Hybrid Journal  
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 21)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 6)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 13)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 1)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 47)
China Communications     Full-text available via subscription   (Followers: 9)
Chinese Journal of Electronics     Hybrid Journal  
Circuits and Systems     Open Access   (Followers: 15)
Consumer Electronics Times     Open Access   (Followers: 5)
Control Systems     Hybrid Journal   (Followers: 304)
ECTI Transactions on Computer and Information Technology (ECTI-CIT)     Open Access  
ECTI Transactions on Electrical Engineering, Electronics, and Communications     Open Access   (Followers: 1)
Edu Elektrika Journal     Open Access   (Followers: 1)
Electrica     Open Access  
Electronic Design     Partially Free   (Followers: 123)
Electronic Markets     Hybrid Journal   (Followers: 7)
Electronic Materials Letters     Hybrid Journal   (Followers: 4)
Electronics     Open Access   (Followers: 103)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Electronics For You     Partially Free   (Followers: 102)
Electronics Letters     Hybrid Journal   (Followers: 26)
Elkha : Jurnal Teknik Elektro     Open Access  
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 55)
Energy Harvesting and Systems     Hybrid Journal   (Followers: 4)
Energy Storage Materials     Full-text available via subscription   (Followers: 3)
EPJ Quantum Technology     Open Access   (Followers: 1)
EURASIP Journal on Embedded Systems     Open Access   (Followers: 11)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and Trends® in Signal Processing     Full-text available via subscription   (Followers: 10)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 207)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 4)
IACR Transactions on Symmetric Cryptology     Open Access  
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 100)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 81)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 51)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 9)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal   (Followers: 1)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 75)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 73)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 58)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 26)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 44)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 19)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 26)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 78)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 12)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 12)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 5)
IET Cyber-Physical Systems : Theory & Applications     Open Access   (Followers: 1)
IET Energy Systems Integration     Open Access  
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 35)
IET Nanodielectrics     Open Access  
IET Power Electronics     Hybrid Journal   (Followers: 57)
IET Smart Grid     Open Access  
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 18)
IETE Journal of Education     Open Access   (Followers: 4)
IETE Journal of Research     Open Access   (Followers: 11)
IETE Technical Review     Open Access   (Followers: 13)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 74)
Industrial Technology Research Journal Phranakhon Rajabhat University     Open Access  
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Informatik-Spektrum     Hybrid Journal   (Followers: 2)
Instabilities in Silicon Devices     Full-text available via subscription   (Followers: 1)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 13)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 18)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 11)
International Journal of Antennas and Propagation     Open Access   (Followers: 11)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 4)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 5)
International Journal of Control     Hybrid Journal   (Followers: 11)
International Journal of Electronics     Hybrid Journal   (Followers: 7)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 13)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 3)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Hybrid Intelligence     Hybrid Journal  
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 16)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 10)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 4)
International Journal of Power Electronics     Hybrid Journal   (Followers: 25)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 4)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 10)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 4)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 6)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
JAREE (Journal on Advanced Research in Electrical Engineering)     Open Access  
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 4)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 11)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 4)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription   (Followers: 1)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 35)
Journal of Electrical Bioimpedance     Open Access  
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electrical, Electronics and Informatics     Open Access  
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 8)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 9)
Journal of Electronic Design Technology     Full-text available via subscription   (Followers: 6)
Journal of Electronics (China)     Hybrid Journal   (Followers: 5)
Journal of Energy Storage     Full-text available via subscription   (Followers: 4)
Journal of Engineered Fibers and Fabrics     Open Access   (Followers: 2)
Journal of Field Robotics     Hybrid Journal   (Followers: 3)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 176)
Journal of Information and Telecommunication     Open Access   (Followers: 1)
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 3)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 10)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 10)
Journal of Microelectronics and Electronic Packaging     Hybrid Journal  
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 3)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 11)
Journal of Nuclear Cardiology     Hybrid Journal  
Journal of Optoelectronics Engineering     Open Access   (Followers: 4)
Journal of Physics B: Atomic, Molecular and Optical Physics     Hybrid Journal   (Followers: 29)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 11)
Journal of Semiconductors     Full-text available via subscription   (Followers: 5)
Journal of Sensors     Open Access   (Followers: 26)
Journal of Signal and Information Processing     Open Access   (Followers: 9)
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer     Open Access  
Jurnal Rekayasa Elektrika     Open Access  
Jurnal Teknik Elektro     Open Access  
Jurnal Teknologi Elektro     Open Access  
Kinetik : Game Technology, Information System, Computer Network, Computing, Electronics, and Control     Open Access  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Magnetics Letters, IEEE     Hybrid Journal   (Followers: 7)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microelectronics and Solid State Electronics     Open Access   (Followers: 28)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 42)
Nanotechnology, Science and Applications     Open Access   (Followers: 6)
Nature Electronics     Hybrid Journal   (Followers: 1)
Networks: an International Journal     Hybrid Journal   (Followers: 5)
Open Electrical & Electronic Engineering Journal     Open Access  
Open Journal of Antennas and Propagation     Open Access   (Followers: 9)
Optical Communications and Networking, IEEE/OSA Journal of     Full-text available via subscription   (Followers: 15)
Paladyn. Journal of Behavioral Robotics     Open Access   (Followers: 1)
Power Electronics and Drives     Open Access   (Followers: 2)
Problemy Peredachi Informatsii     Full-text available via subscription  
Progress in Quantum Electronics     Full-text available via subscription   (Followers: 7)
Pulse     Full-text available via subscription   (Followers: 5)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 3)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 9)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 5)
Revue Méditerranéenne des Télécommunications     Open Access  
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 56)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Services Computing, IEEE Transactions on     Hybrid Journal   (Followers: 4)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 78)
Solid State Electronics Letters     Open Access  
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 13)
Solid-State Electronics     Hybrid Journal   (Followers: 9)
Superconductor Science and Technology     Hybrid Journal   (Followers: 3)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     Open Access  
TELE     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 9)
Transactions on Electrical and Electronic Materials     Hybrid Journal  
Universal Journal of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Ural Radio Engineering Journal     Open Access  
Visión Electrónica : algo más que un estado sólido     Open Access   (Followers: 1)
Wireless and Mobile Technologies     Open Access   (Followers: 6)
Wireless Power Transfer     Full-text available via subscription   (Followers: 4)
Women in Engineering Magazine, IEEE     Full-text available via subscription   (Followers: 11)
Електротехніка і Електромеханіка     Open Access  

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Similar Journals
Journal Cover
China Communications
Journal Prestige (SJR): 0.314
Citation Impact (citeScore): 2
Number of Followers: 9  
 
  Full-text available via subscription Subscription journal
ISSN (Online) 1673-5447
Published by IEEE Homepage  [191 journals]
  • Front and back cover
    • Abstract: Presents the front cover for this issue of the publication.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Call for papers — Feature topic, vol. 17, no. 3, 2020
    • Pages: 1 - 2
      Abstract: With the rapid development of maritime activities, there has been a growing demand for high data rate and ultra-reliable maritime communications. Traditionally, this is provided by maritime satellites. Besides, shore and island-based base stations (BSs) can be built to extend the coverage of terrestrial networks providing the fourth-generation (4G) or even the fifth-generation (5G) services. Unmanned aerial vehicles (UAVs)-aided and ship-borne BSs can also be exploited to serve as relaying nodes in maritime mesh/ad-hoc networks. Despite all these approaches, there are still open issues towards the establishment of an agile maritime communication network (MCN). Different from terrestrial communications for urban or suburban coverage, the MCN faces several challenges due to the complicated electromagnetic propagation environment, the limited geometrically available BS sites, and rigorous service demands from mission-critical applications. To address all these challenges, conventional communications and networking theories and methods need to be tailored for maritime application scenarios or new ones should be explored.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • A CSI acquisition approach for mmWave massive MIMO
    • Authors: Shanzhi Chen;Qiubin Gao;Runhua Chen;Hui Li;Shaohui Sun;Zhengxuan Liu;
      Pages: 1 - 14
      Abstract: Massive Multiple-Input Multiple-Output (MIMO) is considered as a key technology for 4G and 5G wireless communication systems to improve spectrum efficiency by supporting large number of concurrent users. In addition, for the target frequency band of 5G system, mmWave band, massive MIMO is pivotal in compensating the high pathloss. In this paper, we investigate the channel state information (CSI) acquisition problem for mmWave massive MIMO. With hybrid analog-digital antenna architecture, how to derive the analog beamforming and digital beamforming is studied. An iterative analog beam acquisition approach is proposed to save system overhead and reduce beam searching complexity. Regarding the digital beamforming, a grouping based codebook is proposed to facilitate CSI feedback. The codebook is then extended to incorporate also analog beam acquisition. Furthermore, channel reciprocity is exploited to save CSI reporting overhead and a two-stage approach is proposed to fully utilize the channel reciprocity at both mobile station and base station side and accelerate the CSI acquisition procedure.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Selected papers from IEEE/CIC ICCC 2018
    • Authors: Zhiyong Feng;Shuguang Cui;T. Aaron Gulliver;Zhiqing Wei;
      Pages: 15 - 17
      Abstract: IEEE/CIC International Conference on Communication in China (ICCC) is one of the flagship conferences in Asian-Pacific region held by IEEE Communication Society (ComSoc) and China Institute of Communication (CIC). IEEE/CIC ICCC 2018 was held in Beijing, China, on August 16–18, 2018. The key theme is "Ubiquitous Network, Intelligence and Society", which broadly covers the theoretical and practical innovations in the area of communications. The technical program of IEEE/CIC ICCC 2018 features 6 world-class keynote speeches which are presented by Wei-hua Zhuang (Fellow of IEEE, Royal Society of Canada, Canadian Academy of Engineering, and Engineering Institute of Canada), Abbas Jamalipour (Fellow of IEEE, IEICE, and Institution of Engineers Australia), Tao Zhang, Ying-Chang Liang (IEEE Fellow), James Kimery, and Sumei Sun (IEEE Fellow). The invited speakers of IEEE/CIC ICCC 2018 included Yue Gao, Zhi Ding (IEEE Fellow), Tony Q.S. Quek (IEEE Fellow), Kwang-Cheng Chen (IEEE Fellow), Jian-wei Huang (IEEE Fellow), Zhu Han (IEEE Fellow), Klaus Moessner, Tommy Svensson and Qinyu Zhang.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Angle-based beamforming in mmWave massive MIMO systems with low feedback
           overhead using multi-pattern codebooks
    • Authors: Yuyan Zhao;Yanan Liu;Gary Boudreau;Akram Bin Sediq;Xianbin Wang;
      Pages: 18 - 30
      Abstract: The integration of millimeter-wave (mmWave) communications and massive multiple input multiple output (MIMO) techniques is a promising solution to dramatically increase the 5G network throughput. By using large antenna arrays, beamforming can be adopted to improve the 5G capacity by employing spatial domain resources. In a frequency division duplexing (FDD) based 5G mmWave MIMO system, beamforming operation requires timely downlink channel state information (CSI) feedback. However, the rapid channel variations caused by short wavelength of mmWave band, and the high-level feedback information required due to the large number of antennas in massive MIMO system lead to the significantly increased beamforming overhead. In this paper, by exploiting the higher angular stability of such channels, we propose an angle-based beamforming scheme to reduce the feedback frequency and the number of feedback bits. To facilitate this approach users are initially selected to reduce the intra-zone interference before beamforming. Besides, location related feedback, which is not affected by the number of antennas, is adopted to reduce overhead. The simulation results show that two proposed user selection algorithms can adapt to scenarios with diverse requirements, while the feedback overhead of proposed angle-based beamforming algorithm is sharply reduce compared with that of CSI-based beamforming algorithm.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • An adaptive grouping scheme in ultra-dense IEEE 802.11ax network using
           buffer state report based two-stage mechanism
    • Authors: Jiyang Bai;He Fang;Junghoon Suh;Osama Aboul-Magd;Edward Au;Xianbin Wang;
      Pages: 31 - 44
      Abstract: IEEE 802.11ax, which is an emerging WLAN standard, aims at providing highly efficient communication in ultra-dense wireless networks. However, due to a large number of stations (STAs) in the ultra-dense device deployment scenarios, the potentially high packet collision rate significantly decreases the communication efficiency of WLAN. In this paper, we propose an adaptive STA grouping scheme to overcome this dense network challenge in IEEE 802.11ax by using Buffer State Report (BSR) based Two-stage Mechanism (BTM). In order to achieve the optimal efficiency of BSR delivery, we analyze the functional relationship between STA number in group and Resource Unit (RU) efficiency. Based on this analysis results, an adaptive STA grouping algorithm with variable group size is proposed to achieve efficient grouping in BTM. The numerical results demonstrate that the proposed adaptive BTM grouping algorithm significantly improves the BSR delivery efficiency and the throughput of overall system and each STA in the ultra-dense wireless network.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Modeling and parameter optimization of statistical priority-based multiple
           access protocol
    • Authors: Siying Gao;Ming Yang;Hui Yu;
      Pages: 45 - 61
      Abstract: The Statistical Priority-based Multiple Access Protocol (SPMA) is the de facto standard for Tactical Target Network Technology (TTNT) and has also been implemented in ad hoc networks. In this paper, we present a non-preemptive M/M/1/K queuing model to analyze the performance of different priorities in SPMA in terms of average packet loss rate and delay. And based on this queuing model, we designed a percentile scoring system combined with Q-learning algorithm to optimize the protocol parameters. The simulation results show that our theoretical model is closely matched with the reality, and the proposed algorithm improves the efficiency and accuracy in finding the optimal parameter set of SPMA protocol.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Propagation characteristics of elevation angles and three dimensional
           fading channel model with angle offset
    • Authors: Lei Tian;Jianhua Zhang;Haifeng Tan;Pan Tang;Guangyi Liu;
      Pages: 62 - 78
      Abstract: Three dimensional (3D) Multiple Input and Multiple Output (MIMO) is one of the most promising techniques for the 5th generation (5G) mobile communication system. To support its research, the property of elevation angle in 3D channel model should be accurately modeled. Conventionally, 3D channel is modeled with an assumption that the mean elevation angle of multipaths is coincided with the line-of-sight (LOS) direction. In order to investigate its authenticity and give the reliable 3D channel model, extensive 3D multiple antenna field channel measurements with 100 MHz bandwidth are conducted in three typical scenarios, including outdoor to indoor(O2I), urban microcell (UMi) and urban macrocell (UMa). The statistical characteristics and parameters are extracted and analyzed based on the measurement data. It is found that the assumption holds in the LOS condition. However, for non-line-of-sight (NLOS) condition, a difference exists between the mean elevation angle and the direction connecting transmitter and receiver, which is defined as the elevation angle offset. Then, the eigenvalue distribution and capacity are compared between the reconstructed 3D channels with and without elevation angle offset. Results show that the performance of 3D channel with angle offset fits the measurement data better whereas that without angle offset is underestimated.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Multi-frequency channel characterization for massive MIMO communications
           in lobby environment
    • Authors: Jianzhi Li;Bo Ai;Ruisi He;Mi Yang;Zhangdui Zhong;
      Pages: 79 - 92
      Abstract: In this paper, a massive multiple input multiple output (MIMO) channel measurement campaign with two setups is conducted in an indoor lobby environment. In the first setup, two types of 256-element virtual uniform rectangular arrays (URAs), i.e., the 4×64 virtual URA and the 64×4 virtual URA are used. The carrier frequency is 11 GHz; in the second setup, measurements are performed at 4, 6, 11, 13, 15, 18 GHz at two different user locations. The channel characterization is presented by investigating the typical channel parameters, including average power delay profile (APDP), K factor, root mean square (RMS) delay spread, and coherence bandwidth. Moreover, the channel characteristics in angular domain are investigated by applying the space-alternating generalized expectation-maximization (SAGE) algorithm. The extracted multipath components (MPCs) are preliminarily clustered by visual inspection, and related to the interacting objects (IOs) in physical environment. Multipath structures at multiple frequency bands are examined. Direction spread of departure is estimated to evaluate the directional dispersion at the base station (BS) side. The results in this paper can help to reveal the propagation mechanisms in massive MIMO channels, and provide a foundation for the design and application of the practical massive MIMO system.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • V2V channel characterization and modeling for underground parking garages
    • Authors: Mi Yang;Bo Ai;Ruisi He;Liang Chen;Xue Li;Jianzhi Li;Zhangdui Zhong;
      Pages: 93 - 105
      Abstract: As an important part of the intelligent transportation system (ITS), vehicle-to-vehicle (V2V) communication will improve the safety and efficiency of the transportation system by realizing the information transmission between vehicles. The underground parking garage is a typical scenario in V2V communication, but as an indoor environment, it is different from the conventional outdoor road scenarios significantly. Therefore, the purpose of this paper is to analyze and model the V2V channel characteristics of an underground garage. In this paper, a novel channel measurement carried out in the underground garage is first introduced. Considering that there are a lot of obstacles in an underground garage, the non-line-of-sight (NLoS) condition is taken into account during the measurement. Then, channel characteristic parameters, including large-scale fading, delay spread, and K-factor, are analyzed based on the measured data. In addition, we also carry out channel angle of arrival analysis, show the distribution of azimuth of arrival (AOA) and elevation of arrival (EOA) of multipath components (MPC), and conduct a statistical analysis of the angular spread. In the process of analysis and modeling, we focus on the differences between line-of-sight (LoS) and NLoS conditions. The analysis and conclusions presented in this paper will enrich the understanding of V2V channel and benefit the design of V2V communications.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Cross-layer framework for capacity analysis in multiuser ultra-dense
           networks with cell DTx
    • Authors: Qing Li;Yu Chen;Qimei Cui;Yu Gu;Guoqiang Mao;
      Pages: 106 - 121
      Abstract: Cell discontinuous transmission (Cell DTx) is a key technology to mitigate inter-cell interference (ICI) in ultra-dense networks (UDNs). The aim of this work is to understand the impact of Cell DTx on physical-layer sum rates of SBSs and link-layer quality-of-service (QoS) performance in multiuser UDNs. In this work, we develop a cross-layer framework for capacity analysis in multiuser UDNs with Cell DTx. In particular, we first extend the traditional one-dimensional effective capacity model to a new multidimensional effective capacity model to derive the sum rate and the effective capacity. Moreover, we propose a new iterative bisection search algorithm that is capable of approximating QoS performance. The convergence of this new algorithm to a unique QoS exponent vector is later proved. Finally, we apply this framework to the round-robin and the max-C/I scheduling policies. Simulation results show that our framework is accurate in approximating 1) queue length distribution, 2) delay distribution and 3) sum rates under the above two scheduling policies, and further show that with the Cell DTx, systems have approximately 30% higher sum rate and 35% smaller average delay than those in full-buffer scenarios.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • A survey of applications research on content-centric networking
    • Authors: Xiuquan Qiao;Hongyi Wang;Wei Tan;Athanasios V. Vasilakos;Junliang Chen;M. Brian Blake;
      Pages: 122 - 140
      Abstract: As a named data-based clean-slate future Internet architecture, Content-Centric Networking (CCN) uses entirely different protocols and communication patterns from the host-to-host IP network. In CCN, communication is wholly driven by the data consumer. Consumers must send Interest packets with the content name and not by the host's network address. Its nature of in-network caching, Interest packets aggregation and hop-by-hop communication poses unique challenges to provision of Internet applications, where traditional IP network no long works well. This paper presents a comprehensive survey of state-of-the-art application research activities related to CCN architecture. Our main aims in this survey are (a) to identify the advantages and drawbacks of CCN architectures for application provisioning; (b) to discuss the challenges and opportunities regarding service provisioning in CCN architectures; and (c) to further encourage deeper thinking about design principles for future Internet architectures from the perspective of upper-layer applications.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Mobile web augmented reality in 5G and beyond: Challenges, opportunities,
           and future directions
    • Authors: Xiuquan Qiao;Pei Ren;Guoshun Nan;Ling Liu;Schahram Dustdar;Junliang Chen;
      Pages: 141 - 154
      Abstract: The popularity of wearable devices and smartphones has fueled the development of Mobile Augmented Reality (MAR), which provides immersive experiences over the real world using techniques, such as computer vision and deep learning. However, the hardware-specific MAR is costly and heavy, and the App-based MAR requires an additional download and installation and it also lacks cross-platform ability. These limitations hamper the pervasive promotion of MAR. This paper argues that mobile Web AR (MWAR) holds the potential to become a practical and pervasive solution that can effectively scale to millions of end-users because MWAR can be developed as a lightweight, cross-platform, and low-cost solution for end-to-end delivery of MAR. The main challenges for making MWAR a reality lie in the low efficiency for dense computing in Web browsers, a large delay for real-time interactions over mobile networks, and the lack of standardization. The good news is that the newly emerging 5G and Beyond 5G (B5G) cellular networks can mitigate these issues to some extent via techniques such as network slicing, device-to-device communication, and mobile edge computing. In this paper, we first give an overview of the challenges and opportunities of MWAR in the 5G era. Then we describe our design and development of a generic service-oriented framework (called MWAR5) to provide a scalable, flexible, and easy to deploy MWAR solution. We evaluate the performance of our MWAR5 system in an actually deployed 5G trial network under the collaborative configurations, which shows encouraging results. Moreover, we also share the experiences and insights from our development and deployment, including some exciting future directions of MWAR over 5G and B5G networks.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Time domain synchronous OFDM system for optical fiber communications
    • Authors: Chenxin Jing;Xianfeng Tang;Xiaoguang Zhang;Lixia Xi;Wenbo Zhang;
      Pages: 155 - 164
      Abstract: A spectrum efficient OFDM scheme named Time Domain Synchronous-OFDM (TDS-OFDM) is introduced into coherent optical transmission system, in which the pseudo noise (PN) sequence is exploited as guard interval to realize frame synchronization, compensate the carrier frequency offset (CFO), and estimate and equalize channel simultaneously. Since there is no pilot signals or training symbols in TDS-OFDM, the proposed scheme can achieve higher spectral efficiency (SE) above 10% improvement comparing with CP-OFDM. The proposed method is implemented and verified in a 28GBaud QPSK OFDM system and a 28GBaud 16QAM OFDM system. It is demonstrated that the proposed scheme shows high CFO estimation accuracy and synchronous accuracy. Under CFO and linewidth of laser source set as 100MHz and 100kHz respectively, BER of QPSK OFDM system is below 3.8e-3 at the optical signal-to-noise ratio (OSNR) of 13dB, and BER of 16QAM OFDM system is below 3.8e-3 at the OSNR of 20dB.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Digital cancellation scheme and hardware implementation for high-order
           passive intermodulation interference based on Hammerstein model
    • Authors: Xiaqing Miao;Lu Tian;
      Pages: 165 - 176
      Abstract: Passive intermodulation (PIM) interference urgently needs to be solved in the satellite communication system, owing to degrading the whole performance. Mainstream research contributions to the cancellation method for PIM were focused on the analog domain, however, the PIM distortion cannot be eliminated completely with the approaches. Meanwhile, some researchers attempt to tackle the problem through digital signal processing, nevertheless, the proposed methods were not suitable for the practical satellite communication scenario. In this paper, we present a general scheme for the adaptive feedforward PIM cancellation. High-order PIM signals at base-band are estimated by modeling the PIM distortion with Hammerstein model in the digital domain. Based on the reconstructed PIM signal, we adopt the least mean square algorithm to adaptively mitigate the PIM interference for tracking the variation of PIM. The time and frequency synchronization of PIM are based on the correlation of the peak of received signals with the corresponding reconstructed PIM signal. Practical experimental results show that the scheme can effectively cancel the PIM interference, and achieve an interference suppression gain more than 20dB.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Initialization for NMF-based audio source separation using priors on
           encoding vectors
    • Authors: Jaeuk Byun;Jong Won Shin;
      Pages: 177 - 186
      Abstract: Nonnegative matrix factorization (NMF) has shown good performances on blind audio source separation (BASS). While the NMF analysis is a non-convex optimization problem when both the basis and encoding matrices need to be estimated simultaneously, the source separation step of the NMF-based BASS with a fixed basis matrix has been considered convex. However, because the basis matrix for the BASS is typically constructed by concatenating the basis matrices trained with individual source signals, the subspace spanned by the basis vectors for one source may overlap with that for other sources. In this paper, we have shown that the resulting encoding vector is not unique when the subspaces spanned by basis vectors for the sources overlap, which implies that the initialization of the encoding vector in the source separation stage is not trivial. Furthermore, we propose a novel method to initialize the encoding vector for the separation step based on the prior model of the encoding vector. Experimental results showed that the proposed method outperformed the uniform random initialization by 1.09 and 2.21dB in the source-to-distortion ratio, and 0.20 and 0.23 in PESQ scores for supervised and semi-supervised cases, respectively.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Cooperative relay based on exploiting hybrid ARQ
    • Authors: Mingxuan Li;Jie Lin;Liang Zhong;Mengting Wang;Wei Lv;
      Pages: 187 - 200
      Abstract: In order to compensate the primary performance degradation, which is caused by the co-existing secondary communications or the heavy fading of primary link, a cooperative relay scheme is proposed in cognitive radio systems by taking advantage of the opportunities that are arisen by the primary ARQ (Automatic Repeat-reQuest) retransmission. With the help of this scheme, nontrivial relay assistances for the primary retransmission are achieved without initialization phase. The cooperation among secondary users provides additional spatial diversity to facilitate the primary transmission. This can be accomplished with an oblivious primary system and without assuming any non-causal information about the primary data. The scheme are further extended to the scenarios where multiple cognitive pairs exist. Performance analyses of the schemes are devised and the effectiveness is verified via simulations.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • LLR processing of polar codes in concatenation systems
    • Authors: Ya Meng;Yi Fang;Chuan Zhang;Liping Li;
      Pages: 201 - 208
      Abstract: This paper studies the decoding performance of low-density parity-check (LDPC) codes in a serial concatenation system with polar codes employing the successive cancellation (SC) decoding. It is known that the absolute incorrect log-likelihood ratio (LLR) values from the SC decoding can be very large. This phenomenon dramatically deteriorates the error correcting performance of the outer LDPC codes. In this paper, the LLR values of polar codes are regulated by a log processing before being sent to the LDPC decoder. Simulation results show that the log processing is an efficient approach with a low optimization complexity compared with the existing procedures to improve the performance of the serial concatenation systems.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Towards the design of ethics aware systems for the Internet of Things
    • Authors: Sahil Sholla;Roohie Naaz Mir;Mohammad Ahsan Chishti;
      Pages: 209 - 221
      Abstract: The Internet of Things promises to offer numerous societal benefits by providing a spectrum of user applications. However, ethical ramifications of adopting such pervasive technology on a society-wide scale have not been adequately considered. Smart things endowed with artificial intelligence may carry out decisions that entail ethical consequences. It is assumed that the functioning of a smart device does not involve any ethical responsibility vis-a-vis its application context. Such a perspective may precipitate situations that endanger essential human values or cause physical or emotional harm. Therefore, it is necessary to consider the design of ethics within intelligent systems to safeguard human interests. In order to address these concerns, we propose a novel method based on Boolean algebra that enables a machine to exhibit varying ethical behaviour by employing the concept of ethics categories and ethics modes. Such enhancement of smart things offers a way to design ethically compliant smart devices and paves way for human friendly technology ecosystems.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Research on multicloud access control policy integration framework
    • Authors: Peng Zhao;Lifa Wu;Zheng Hong;He Sun;
      Pages: 222 - 234
      Abstract: Multicloud access control is important for resource sharing and security interoperability across different clouds, and heterogeneity of access control policy is an important challenge for cloud mashups. XAC-ML is widely used in distributed environment as a declaratively fine-grained, attribute-based access control policy language, but the policy integration of XACML lacks formal description and theory foundation. Multicloud Access Control Policy Integration Framework (MACPIF) is proposed in the paper, which consists of Attribute-based Policy Evaluation Model (ABPEM), Four-value Logic with Completeness (FLC) and Four-value Logic based Policy Integration Operators (FLPIOs). ABPEM evaluates access control policy and extends XACML decision to four-value. According to policy decision set and policy integration characteristics, we construct FLC and define FLPIOs including Intersection, Union, Difference, Implication and Equivalence. We prove that MACPIF can achieve policy monotonicity, functional completeness, canonical suitability and canonical completeness. Analysis results show that this framework can meet the requirements of policy integration in Multicloud.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • A study on service-oriented smart medical systems combined with key
           algorithms in the IoT environment
    • Authors: Shan Lu;Anzhi Wang;Shenqi Jing;Tao Shan;Xin Zhang;Yongan Guo;Yun Liu;
      Pages: 235 - 249
      Abstract: A smart medical service system architecture is proposed in this paper to increase medical resource utilization and improve the efficiency of the medical diagnosis process for complex business scenarios in the Medical Internet of Things (MIoT) environment. The resource representation model theory, multi-terminal aggregation algorithm, and the resource discovery algorithm based on latent factor model are also studied. A smart medical service system within the IoT environment is then developed, based on the open source project. Experimental results using real-world datasets illustrate that the proposed smart medical service system architecture can promote the intelligent and efficient management of medical resources to an extent, and assists in the develop towards digitization, intelligence, and precision in the field of medicine.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
  • Convolutional neural networks based indoor Wi-Fi localization with a novel
           kind of CSI images
    • Authors: Haihan Li;Xiangsheng Zeng;Yunzhou Li;Shidong Zhou;Jing Wang;
      Pages: 250 - 260
      Abstract: Indoor Wi-Fi localization of mobile devices plays a more and more important role along with the rapid growth of location-based services and Wi-Fi mobile devices. In this paper, a new method of constructing the channel state information (CSI) image is proposed to improve the localization accuracy. Compared with previous methods of constructing the CSI image, the new kind of CSI image proposed is able to contain more channel information such as the angle of arrival (AoA), the time of arrival (TOA) and the amplitude. We construct three gray images by using phase differences of different antennas and amplitudes of different subcarriers of one antenna, and then merge them to form one RGB image. The localization method has off-line stage and on-line stage. In the off-line stage, the composed three-channel RGB images at training locations are used to train a convolutional neural network (CNN) which has been proved to be efficient in image recognition. In the on-line stage, images at test locations are fed to the well-trained CNN model and the localization result is the weighted mean value with highest output values. The performance of the proposed method is verified with extensive experiments in the representative indoor environment.
      PubDate: Sept. 2019
      Issue No: Vol. 16, No. 9 (2019)
       
 
 
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