A Reduced Complexity Time-Delay Tracking and Channel Estimation for OFDM Systems

被引：0

作者：

侯晓赟 ^{[1
]}

罗汉文 ^{[2
]}

郑宝玉 ^{[3
]}

徐友云 ^{[2
]}

宋文涛 ^{[2
]}

机构：

[1] Deptof Electronic Eng,Shanghai Jiaotong Univ, Shanghai , China,Dept of Information Eng,Nanjing Univ of Posts & Telecommunications, Nanjing

[2] Deptof Electronic Eng,Shanghai Jiaotong Univ, Shanghai ,China

[3] Deptof Information Eng,Nanjing Univ of Posts & Telecommunications, Nanjing

来源：

Journal of Shanghai Jiaotong University(Science) | 2006年 / 03期

关键词：

orthogonal frequency division multiplexing (OFDM); channel estimation; time-delay tracking;

D O I：

暂无

中图分类号：

TN929.531 [频分多址（FDMA）移动通信];

学科分类号：

080402 ; 080904 ; 0810 ; 081001 ;

摘要：

This paper presented an improved channel estimator for orthogonal frequency division multiplexing (OFDM) systems using joint time delay detection and channel gain estimation. The algorithm well designs an adjustment scheme using the time correlation of time delays to increase the accuracy of the time delay detection. The most attractive advantage is that the complicated matrix calculation is replaced by the search steps to estimate the channel parameters without significantly increasing the complexity of the system. The computer simulation demonstrates that the proposed algorithm can track the time delays adaptively and improve the channel estimation performance. Consequently, the better system performance will be achieved.

引用

页码：356 / 360

页数：5

共 7 条

[1]

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[2]

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[3]

Ove E,Magnus S,Jan-Jaap V.On Channel Estimation in OFDM Systems. Proc.of IEEE Conf.on Vehicular Technology . 1995

[4]

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[5]

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[6]

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[7]

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