Multi-cell multi-user relaying exploiting overheard signals

Chan Dai Truyen Thai, Jemin Lee, Ha X. Nguyen, Marion Berbineau, Tony Q.S. Quek

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

Two-way relay analog network coding improves the communication rate of a network with symmetric traffic between two end nodes by combining different transmission flows and exploiting the fact that the self-interference can be cancelled at each node. However, this scheme does not efficiently work in the case of asymmetric traffic between the nodes. We propose a novel scheme for a multi-cell multi-user shared-relay network with asymmetric traffic. By exploiting the overheard signals from the users with uplink messages to the users with downlink messages, we determine the precoding matrices at the base stations and the relay station, and use interference alignment such that all interference signal is suppressed. Numerical results show that the new scheme's performance is better than a corresponding benchmark scheme in terms of sum-rate and user rates.

原文English
文章編號6810779
頁(從 - 到)401-404
頁數4
期刊IEEE Wireless Communications Letters
3
發行號4
DOIs
出版狀態Published - 2014 8月

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 電氣與電子工程

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