DocumentCode :
3607000
Title :
Energy-efficient transceiver design for multi-pair two-way relay systems
Author :
Zesong Fei ; Na Li ; Xing Chengwen ; Gong Shiqi
Author_Institution :
Beijing Inst. of Technol., Beijing, China
Volume :
12
Issue :
9
fYear :
2015
fDate :
7/7/1905 12:00:00 AM
Firstpage :
133
Lastpage :
140
Abstract :
In this paper, we focus on energy-efficient transceiver and relay beamforming design for multi-pair two-way relay system. The multi-antenna users and the multi-antenna relay are considered in this work. Different from the existing works, the proposed algorithm is energy-efficient which is more applicable to the future green network. It considers both the sum-MSE problem and the power consumption problem for the users under the relay power constraint. Based on the optimal condition decomposition (OCD) method, the energy-efficient precoders at the users can be designed separately with limited information exchanged. The proposed relay beamforming algorithm is based on the alternative direction method of multipliers (ADMM) which has simpler iterative solution and enjoys good convergence. Simulation results demonstrate the performance of the proposed algorithms in terms of power consumption and MSE performance.
Keywords :
antenna arrays; array signal processing; iterative methods; mean square error methods; power consumption; radio transceivers; relay networks (telecommunication); telecommunication power management; ADMM; alternative direction method of multipliers; energy efficient transceiver; multiantenna relay; multiantenna users; multipair two-way relay systems; optimal condition decomposition; power consumption problem; relay beamforming; relay power constraint; simpler iterative solution; sum-MSE problem; Array signal processing; Energy efficiency; Interference; Optimization; Receivers; Relays; Transceivers; alternative direction method of multipliers; energy efficient; optimal condition decomposition; two-way relay;
fLanguage :
English
Journal_Title :
Communications, China
Publisher :
ieee
ISSN :
1673-5447
Type :
jour
DOI :
10.1109/CC.2015.7275251
Filename :
7275251
Link To Document :
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