A novel channel estimation scheme in MC DS-CDMA systems

被引：0
|
作者：
Ju, MY [1 ]
Feng, GZ [1 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Dept Commun Engn, Nanjing 210003, Peoples R China
来源：
ICCC2004: PROCEEDINGS OF THE 16TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATION VOL 1AND 2 | 2004年
关键词：
MC Multicarrier Direct Sequence-Code Division Multiple Access (DS-CDMA); channel estimation; channel estimation in time domain; channel estimation in frequency domain;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a novel channel estimation scheme for MC DS-CDMA. We make the channel estimation in time domain firstly and then the channel estimation in frequency domain is used to further improve the performance of channel estimation. The simulation results show that the averaged channel estimation scheme in time domain could largely filter out the noise and improve the accuracy of channel estimation, especially at low Signal-Noise-Ratio (SNR). With followed channel estimation in frequency domain, the bit error rate (BER) performance of systems has 0.5dB improvement further. After two times of channel estimation, the system performance approximates to that of the ideal channel estimation.
引用
收藏
页码：803 / 808
页数：6
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