Energy-Efficient Relaying Strategy with Network Coding in Two-Way Parallel Channels

• DOI: 10.5402/2011/186783
• Publication Date: 2011-02-16T20:11:49Z
• Authors: Ning Hu; Xiang Chen; Xiaofeng Zhong; Ben Slimane; Yunzhou Li; Jing Wang
• Keywords: Linear network coding; Channel state information; Transmitter power output

We consider a two-way communication assisted by parallel regenerative decode-and-forward relays operating in orthogonal channels. In system with limited channel state information at each source and relay node, an optimum distributed power allocation strategy is proposed to minimize the total transmit power, providing target signal-to-noise ratio destination outage probability. Moreover, combined opportunistic relaying network coding, decision mechanism for node decide whether help transmission or not. this proposal, works out threshold then broadcasts them. The selected compares gain of its weaker relay-to-destination link, determines forward networkcoded data Simulation results show advantage terms energy efficiency two-hop scenario. very flexible as it can trade consumption vice versa.