Title :
Joint multi-user precoding in multi-relay systems
Author :
Hang Long ; Wei Xiang ; Yueying Zhang ; Jing Wang ; Wenbo Wang
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Multi-user precoding in multi-relay systems is investigated in this paper. Firstly, a distributed precoder through the relay nodes is presented, which performs as a sub-optimum solution in terms of both the outage probability and ergodic capacity. Then, a multi-user precoder at the source node is jointly designed, where is used to enhance the maximum signal-to-leakage-and-noise ratio of each data stream.
Keywords :
amplify and forward communication; multi-access systems; precoding; probability; distributed precoder; ergodic capacity; joint multiuser precoding; multirelay systems; outage probability; relay nodes; signal-to-leakage-and-noise ratio; source node; Eigenvalues and eigenfunctions; Interference; Protocols; Relays; Reliability; Signal to noise ratio; Vectors;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on
Conference_Location :
Kun Ming
Print_ISBN :
978-1-4673-2698-8
Electronic_ISBN :
978-1-4673-2697-1
DOI :
10.1109/ChinaCom.2012.6417525
