JournalTOCs

EURASIP Journal on Wireless Communications and Networking
Journal Prestige (SJR): 0.301

Citation Impact (citeScore): 2
Number of Followers: 14

This is an Open Access Journal

Open Access journal
ISSN (Print) 1687-1472 - ISSN (Online) 1687-1499
Published by SpringerOpen

[229 journals]

Joint hybrid-precoding design for MU-MISO systems with a subconnected
architecture
- Abstract: Abstract In this study, we propose a joint hybrid-precoding algorithm for multiuser multiple-input single-output downlink systems. Specifically, we consider that the base station employs an energy-efficient hybrid-precoding subconnected (SC) architecture with fixed equal subarrays (FESA) (SC-FESA). Optimizing the analog precoding matrix in an SC-FESA architecture is challenging due to its unique constraint structure. In this study, to maximize system sum rate, we propose an efficient method to transform the system’s sum-rate optimization problem into a continuous and differentiable objective function wherein only the nonzero elements of the analog precoding matrix are optimized. For the formulated problem, we develop an alternating optimization (AO) approach to jointly optimize the digital and analog precoders in succession by maximizing the system’s sum rate. Specifically, in the proposed AO method, when the digital precoder is fixed, we employ the Riemannian conjugate gradient algorithm to generate the analog precoder. Furthermore, when the analog precoder is fixed, we use the minimum mean squared error method to obtain the digital precoder. Numerical simulation results show that the proposed AO algorithm improves the sum rate and energy efficiency of the SC-FESA architecture compared to existing algorithms.
  PubDate: 2023-01-25
Artificial intelligence (AI) and machine learning (ML) for beyond 5G/6G
communications
- PubDate: 2023-01-23
Study on optimization of communication network for multi-unmanned aerial
vehicles
- Abstract: Abstract The unmanned aerial vehicles (UAV) base station is most widely used as the emergency communication in response to emergencies. However, the performance improvement is in great demand at communication network. To improve the performance between the UAVs and the users, a novel method is proposed based on k-means++ algorithm and antenna adjusting. The established simulation platform and models are credible and reliable according to the very excellent approximation capability and the strong correlation between the simulation results and the Shannon’s formula. The transmission success rate for the three conditions (using only k-means++, antenna pointing optimization and antenna downtilt angle optimization) dramatically increases with an increase in k and all reach the maximum when k is equal to 5. The fan throughput of the proposed method is almost two times than that of the other two conditions after the k value exceeds 5. Meanwhile, the edge users’ rate and average user rate of the proposed method are all markedly increased. Overall, a novel method is provided for optimizing the performance between multi-UAVs and users, and the performance communication network for multi-UAVs is optimized by using the proposed method in this paper.
  PubDate: 2023-01-23
Retraction Note: P2P net loan default risk based on Spark and complex
network analysis based on wireless network element data environment
- PubDate: 2023-01-19
Retraction Note: The sustainable development information management of
Winter Olympics based on Internet-based wireless sensor network
- PubDate: 2023-01-18
Retraction Note: Investigation of the evaluation system of SMEs’
industrial cluster management performance based on wireless network
development
- PubDate: 2023-01-18
Retraction Note: Data cleansing method of talent management data in
wireless sensor network based on data mining technology
- PubDate: 2023-01-18
Retraction Note: An empirical study on the relationship between China’s
financial development and economic growth based on sensor technology
- PubDate: 2023-01-18
Retraction Note: Research on the perfection of the countermeasures of the
judicial execution scheme in the administrative law system based on
annealing algorithm
- PubDate: 2023-01-18
Retraction Note: The effect of foreign direct investment based on wireless
network technology on China’s regional economic growth
- PubDate: 2023-01-17
Retraction Note: Research on the construction of regional electronic
commerce large data analysis platform
- PubDate: 2023-01-17
Secure spatial modulation based on two-dimensional generalized weighted
fractional Fourier transform encryption
- Abstract: Abstract In this paper, a two-dimensional generalized weighted fractional Fourier transform (2DGWFRFT) and constellation scrambling (CS)-based secure spatial modulation (SM) scheme, called 2DGWFRFT-CS-SM, is proposed to enhance the physical layer security (PLS) of the wireless communication system. The proposed scheme is executed by two steps. In the first step, 2DGWFRFT is implemented as the security kernel for PLS provision. In the second step, the parameters of 2DGWFRFT, regarded as the encryption core, control the antenna number rotation to further enhance the security of the SM modulation symbol. Both the 2DGWFRFT signal generation strategy and the SM system including the transfer process have been elaborated to depict the security mechanism of the proposed scheme. Moreover, we give a key extraction algorithm utilized to generate the parameters, which can help scramble the antenna serial number. From the perspective of signal characteristics, the uniqueness of variation in the constellation has been investigated to outperform other cryptography-based encryption algorithms. Finally, the secrecy rates and the energy efficiency of our proposed scheme are theoretically analyzed and evaluated via Monte Carlo simulations, demonstrating that the proposed scheme can achieve a much higher secrecy capacity than artificial noise schemes without requiring additional jamming power consumption and myriad costs of hardware.
  PubDate: 2023-01-17
Retraction Note: A smart position optimization scheme for badminton
doubles based on human–computer interactive training in wireless sensor
networks
- PubDate: 2023-01-12
Retraction Note: Research on intelligent medical big data system based on
Hadoop and blockchain
- PubDate: 2023-01-11
Retraction Note: Research on English teaching system based on artificial
intelligence and WBIETS wireless network system
- PubDate: 2023-01-10
Retraction Note: Application research of perception data fusion system of
agricultural product supply chain based on Internet of things
- PubDate: 2023-01-10
Retraction Note: Evaluation of the value of basketball players based on
wireless network and improved Bayesian algorithm
- PubDate: 2023-01-10
Retraction Note: Research on personal credit evaluation of internet
finance based on blockchain and decision tree algorithm
- PubDate: 2023-01-10
Retraction Note: Parameter estimation of network signal normal
distribution applied to carbonization depth in wireless networks
- PubDate: 2023-01-10
Retraction Note: The construction of hierarchical network model and
wireless activation diffusion optimization model in English teaching
- PubDate: 2023-01-10