Carrier frequency offset and channel estimation in space-time non-regenerative two-way relay network

L. B. Thiagarajan, Sumei Sun, Tony Q.S. Quek

研究成果: Conference contribution

6 引文 斯高帕斯(Scopus)

摘要

Two-way relaying is an effective approach to exchange information between two simultaneously transmitting sources in wireless fading environment. Space-time non-regenerative relaying aids to keep the relay hardware simple and cheap. Accurate estimates for the channel and carrier frequency offset (CFO) are required by the receiver to reap the benefits from relaying. In this paper, we propose a training frame format for relay transmission and formulate a subspace based CFO and channel estimator. The estimation problem is shown to be similar to the joint CFO and channel estimation in a multiuser uplink system. Furthermore, the relay and source nodes are not required to adjust their carrier frequencies. Numerical results show that the mean square error performance of the proposed estimators can reach their corresponding Cramer-Rao lower bounds.

原文English
主出版物標題2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009
頁面270-274
頁數5
DOIs
出版狀態Published - 2009
事件2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009 - Perugia, Italy
持續時間: 2009 六月 212009 六月 24

出版系列

名字IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Conference

Conference2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009
國家/地區Italy
城市Perugia
期間09-06-2109-06-24

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程
  • 電腦科學應用
  • 資訊系統

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