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has been cited by the following article:

• TITLE: Maximum Ratio Combining Precoding for Multi-Antenna Relay Systems

  AUTHORS: Hamid Reza Bahrami, Tho Le-Ngoc

  KEYWORDS: Cooperation, Relay System, Linear Precoding, Maximum Ratio Combining

  JOURNAL NAME: Communications and Network, Vol.2 No.2, May 31, 2010

  ABSTRACT: This paper addresses the design of practical communication strategies for multi-antenna amplify-and-forward and decode-and-forward relay systems. We show that simple linear techniques at the source and destination in conjunction with maximum ratio combining can provide an optimal transmission strategy in terms of received SNR without imposing a huge computational load over the relay node(s). Besides, the structures of precoding matrices are very similar at the source and relay nodes, which reduces the complexity as all nodes can play the role of source and relay nodes without changing their transmission structure. Numerical results show that the proposed transmission and reception techniques can improve the received SNR, and hence enhance the ergodic capacity.