A novel channel estimation method for TD-SCDMA system

被引：0
|
作者：
Yang Xiaohui [1 ]
He Dandan [1 ]
Li Lihua [1 ]
Tao Xiaofeng [1 ]
Zhang Ping [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Wireless Technol Innovat Lab, Beijing 100876, Peoples R China
来源：
2006 IEEE INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-4 | 2006年
关键词：
TD-SCDMA; JD; B.Steiner estimator;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
B.Steiner estimator used in the TD-SCDMA system assumes that the channel response during one timeslot is constant, which results in big errors under the fast varying channel condition compared with real channel response. In order to solve this problem, a novel channel estimation method is proposed for TD-SCDMA system. Every timeslot is separated into several segments, the multi-segment estimation and multi-slot LSM fit is used to improve the accuracy of channel estimation. By comparing this two methods and analyzing their effects to detection, especially for joint detection (JD) algorithm of TD-SCDMA system, simulation results show that the novel channel estimation is more close to the real channel response, which can largely improve the system performance, especially for the fast varying channel environment.
引用
收藏
页码：783 / 786
页数：4
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