Distributed incremental cooperative relaying with quantized feedback

Kuang-Hao Liu

研究成果: Conference contribution

6 引文 斯高帕斯(Scopus)

摘要

Incremental relaying (IR) is known to improve the spectral efficiency of cooperative communication by using the destination feedback. In IR, the relay nodes are employed to assist the source transmission only if it is failed. When the relay nodes perform demodulate-and-forward (DmF), all of them are eligible to forward the source information. This is different from decode-and-forward (DF), where only the relay nodes with successful decoding will forward. In fact, employing all the relay nodes to forward not only increases the end-to-end delay but also incurs a low spectral efficiency due to information repetition. This paper considers DmF-based IR and proposes a distributed relay cooperation scheme that achieves full diversity using the quantized feedback from the destination node. The quantized feedback allows the relay node to make the cooperation decision locally and only a small amount of bandwidth is consumed for signaling. We theoretically analyze the average end-to-end bit error rate (BER) based on the cooperative maximum ratio combining (C-MRC). Numerical results demonstrate that the proposed scheme achieves full diversity and the BER improvement is significant when the the source-destination channel is weak.

原文English
主出版物標題2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
DOIs
出版狀態Published - 2011 十二月 1
事件54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, United States
持續時間: 2011 十二月 52011 十二月 9

出版系列

名字GLOBECOM - IEEE Global Telecommunications Conference

Other

Other54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
國家/地區United States
城市Houston, TX
期間11-12-0511-12-09

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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