Design and Optimization for Distributed Compress-and-Forward System based on Multi-Relay Network
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- 所属单位：电子信息工程学院
- 发表刊物：KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS
- 关键字：compress-and-forward multi-relay amplify-and-forward the CEO problem SNR power allocation
- 摘要：A novel distributed compress-and-forward (CF) system based on multi-relay network is presented. In this system, as the direct link between the source and destination is invalid due to some reasons, such as the limited power, special working environment, or even economic factors, relays are employed to receive analog signals and carry on distributed compressed encoding. Subsequently, the digital signals are transmitted to the destination via wireless channel Moreover, a theoretical analysis for the system is provided by utilizing the Chief Executive Officer (CEO) theory and Shannon channel capacity theory, and the rate-distortion function as well as the connection between the transmission rate and the channel capacity are constructed. In addition, an optimal signal-to-noise ratio (SNR) -based power allocation method is proposed to maximize the quantization SNR under the limited total power. Simulation result shows that the proposed CF system outperforms the amplify-and-forward (AF) system versus the SNR performance.
- ISSN号：1976-7277
- 是否译文：否
- 发表时间：2019-06-30
- 合写作者：徐大专,Luo, Hao,Zhang, Ruidan
- 通讯作者：徐大专,鲍军委
- 发表时间：2019-06-30
