Channel Estimation for Two-Way Relay Networks with Imperfect Synchronization

被引：0
|
作者：
Xie, Xinqian [1 ]
Peng, Mugen [1 ]
Zhao, Zhongyuan [1 ]
Wang, Chonggang [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Wireless Signal Proc & Network Lab, Beijing 100088, Peoples R China
[2] InterDigital Commun, King Of Prussia, PA 19406 USA
来源：
2013 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP 2013) | 2013年
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
DESIGN;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, the channel estimation problem for two-way relay networks with imperfect synchronization is considered where training sequences sent from the two sources can not arrive at relay simultaneously. To analyze its performance, the Cramer-Rao bound of composite channel coefficients are first derived, then the optimal power allocation is investigated aiming at minimizing the corresponding CRBs. Focusing on declining the bit error probability of signal detection at receiver, an iterative estimation algorithm is proposed based on the optimal linear estimator. Simulations are conducted to demonstrate the effectiveness of the proposed estimation algorithm.
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页数：6
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