Combined channel estimator for pilot-assisted wireless OFDM communication systems

被引：0
|
作者：
Ma, Y [1 ]
Huang, Y [1 ]
Yi, N [1 ]
Liu, F [1 ]
机构：
[1] Univ Liverpool, Dept Elect & Elect Engn, Liverpool L69 3GJ, Merseyside, England
来源：
VTC2004-SPRING: 2004 IEEE 59TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS | 2004年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper investigates two types of combined channel estimator (CCE) for pilot-assisted orthogonal frequency division multiplexing mobile communication systems. The CCE-typel is a double maximum-likelihood (MEL) based estimator, which works under a limit condition that the number of pilot tones should not be smaller than the channel length. The bit-error-rate performance can be improved significantly by employing this estimator. The CCE-type2 is a second-order polynomial model and ML combined approach. It has better performance than the traditional approach when the limit condition is not satisfied. Simulation results are given to corroborate our discussion.
引用
收藏
页码：1888 / 1891
页数：4
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