Robust power allocation for amplify-and-forward relay networks

Tony Q.S. Quek, Moe Z. Win, Hyundong Shin, Marco Chiani

研究成果: Conference contribution

12 引文 斯高帕斯(Scopus)

摘要

Relay power allocation has been shown to provide substantial performance gain in wireless relay networks when perfect global channel state information (CSI) is available. In this paper, we consider a more realistic scenario, where such global CSI is subject to uncertainty, and we aim to design robust power allocation protocols for both the coherent and noncoherent amplify-and-forward relay networks. The problem formulation is such that the output signal-to-noise ratio is maximized under both the aggregate and individual relay power constraints. Our previous results show that these optimization problems can be formulated as quasiconvex optimization problems, and are solved using the bisection method via a sequence of conic feasibility problems. We extend these results to the case of uncertain global CSI, and design robust relay power allocations using the robust optimization methodology. For simple ellipsoidal uncertainty sets, the robust counterparts of these optimization problems are semi-definite programs and can be solved efficiently via interior-point methods.

原文English
主出版物標題2007 IEEE International Conference on Communications, ICC'07
頁面957-962
頁數6
DOIs
出版狀態Published - 2007
事件2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
持續時間: 2007 六月 242007 六月 28

出版系列

名字IEEE International Conference on Communications
ISSN(列印)0536-1486

Other

Other2007 IEEE International Conference on Communications, ICC'07
國家/地區United Kingdom
城市Glasgow, Scotland
期間07-06-2407-06-28

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電氣與電子工程

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