Time-domain fine channel estimation based on broadband burst Single Carrier-Frequency Domain Equalization transmission

被引：0
|
作者：
Wu Z. [1 ]
Zhang Y. [1 ,2 ]
Jiang L. [1 ]
Song J. [3 ,4 ]
机构：
[1] Department of Electronic Engineering, Tsinghua University, Beijing
[2] National Laboratory for Information Science and Technology, Tsinghua University, Beijing
[3] National Engineering Laboratory for DTV (Beijing), Beijing
[4] Shenzhen City Key Laboratory of Digital TV System, Shenzhen
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2016年 / 38卷 / 05期
关键词：
Burst transmission; Channel estimation; Single Carrier-Frequency Domain Equalization (SC-FDE); Training sequence; Wireless communication;
D O I：
10.11999/JEIT150682
中图分类号：
学科分类号：
摘要：
Single Carrier-Frequency Domain Equalization (SC-FDE) is a competitive alternative for broadband wireless communication systems, which has attracted wide attention and extensive research. As an effective technical solution to cope with multipath effects, SC-FDE shows low complexity and has low signal peak to average power ratio compared with OFDM signals. In burst SC-FDE systems, channel information is required at the receivers to avoid the performance loss of demodulations. Traditional channel estimation methods based on training sequences are not very suitable for broadband burst SC-FDE system. In this paper, a fine channel estimation method based on the time-domain training sequence is proposed. Channel parameters are obtained with the aid of time domain PN sequence based on maximum likelihood criteria. Besides, the noise suppression process is performed for channel estimation values on account of the channel noise strength. Simulation results demonstrate that the proposed channel estimation method can significantly reduce the Bit Error Rate (BER) of signal reception while maintaining low realization complexity. © 2016, Science Press. All right reserved.
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页码：1166 / 1172
页数：6
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