Low complexity power allocation in multiple-antenna relay networks

2008 ◽  
Author(s):  
Yi Zheng ◽  
Steven D. Blostein
Keyword(s):  
Power Allocation ◽  
Relay Networks ◽  
Low Complexity ◽  
Multiple Antenna

scholarly journals Resource Allocation and QoS Provisioning for Wireless Relay Networks

2010 ◽  
pp. 125-150 ◽  
Author(s):  
Long Bao Le ◽  
Sergiy A. Vorobyov ◽  
Khoa T. Phan ◽  
Tho Le-Ngoc
Keyword(s):  
Resource Allocation ◽  
Power Allocation ◽  
Cooperative Diversity ◽  
Relay Networks ◽  
Low Complexity ◽  
Qos Provisioning ◽  
Wireless Relay Networks ◽  
Joint Power ◽  
Minimum Rate ◽  
Wireless Relay

This chapter reviews fundamental protocol engineering aspects and presents resource allocation approaches for wireless relay networks. Important cooperative diversity protocols and their typical applications in different wireless network environments are first described. Then, performance analysis and QoS provisioning issues for wireless networks using cooperative diversity are discussed. Finally, resource allocation in wireless relay networks through power allocation for both single and multi-user scenarios are presented. For the multi-user case, we consider relay power allocation under different fairness criteria with or without user minimum rate requirements. When users have minimum rate requirements, we develop a joint power allocation and addmission control algorithm with low-complexity to circumvent the high complexity of the underlying problem. Numerical results are then presented, which illustrate interesting throughput and fairness tradeoff and demonstrate the efficiency of the proposed power control and addmission control algorithms.

Power allocation algorithm with QoS-requirements in multi-user relay networks

2011 ◽  
Vol 31 (3) ◽  
pp. 606-608
Author(s):  
Jing-lin YAN ◽  
Lun TANG ◽  
Qian-bin CHEN ◽  
Bo CHEN
Keyword(s):  
Power Allocation ◽  
Relay Networks ◽  
Allocation Algorithm

scholarly journals Low-complexity beam-domain channel estimation and power allocation in hybrid architecture massive MIMO systems

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Xiao Chen ◽  
Zaichen Zhang ◽  
Liang Wu ◽  
Jian Dang
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Spectral Efficiency ◽  
Communication Systems ◽  
Mimo Systems ◽  
Beam Steering ◽  
Estimation Method ◽  
Low Complexity ◽  
Estimation Accuracy ◽  
Hybrid Architecture

Abstract In this journal, we investigate the beam-domain channel estimation and power allocation in hybrid architecture massive multiple-input and multiple-output (MIMO) communication systems. First, we propose a low-complexity channel estimation method, which utilizes the beam steering vectors achieved from the direction-of-arrival (DOA) estimation and beam gains estimated by low-overhead pilots. Based on the estimated beam information, a purely analog precoding strategy is also designed. Then, the optimal power allocation among multiple beams is derived to maximize spectral efficiency. Finally, simulation results show that the proposed schemes can achieve high channel estimation accuracy and spectral efficiency.

Low-Complexity Coded Transmission Without CSI for Full-Duplex Relay Networks

2020 ◽  
Author(s):  
Chao Chen ◽  
Zheng Meng ◽  
Seung Jun Baek ◽  
Xiaohan Yu ◽  
Chuanhuang Li ◽  
...  
Keyword(s):  
Relay Networks ◽  
Low Complexity ◽  
Full Duplex ◽  
Full Duplex Relay
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