Study of Segment Training Based Individual Channel Estimation for Two-Way Relay Network

被引：3
作者：
Zhang, Shun [1 ]
Gao, Feifei [2 ]
Yi, Yun-Hui [1 ]
Pei, Chang-Xing [1 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
[2] Tsinghua Univ, Dept Automat, State Key Lab Intelligent Technol & Syst, TNList, Beijing 100084, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Individual channel estimation; two-way relay network; power allocation; optimal design; POWER ALLOCATION; DESIGN; OFDM;
D O I：
10.1109/LCOMM.2012.122012.122183
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, we design a segment training based individual channel estimation (STICE) scheme in the classical three-node amplify-and-forward two-way relay network (TWRN). We resort to linear minimum-mean-square-error (LMMSE) estimators to achieve the in-channel estimation without sign ambiguity through two consecutive segments. We derive the mean-square-error (MSE) of the individual channel estimation, from which the optimal training and the optimal relay's power allocation are obtained. Numerical results are provided to corroborate the provided studies.
引用
收藏
页码：401 / 404
页数：4
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