MIMO-OFDM channel estimation method utilizing correlation in time domain for B3G-TDD uplink

被引：0
|
作者：
ZHOU, Ming-yu [1 ]
LI, Li-hua [1 ]
JIANG, Jun [1 ]
ZHONG, Ming-hua [1 ]
TAO, Xiao-feng [1 ]
机构：
[1] Wireless Technologies Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, 100876, China
来源：
Journal of China Universities of Posts and Telecommunications | 2007年 / 14卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Antennas - Channel estimation - Computer simulation - Frequency domain analysis - Mean square error - Orthogonal frequency division multiplexing;
D O I：
10.1016/S1005-8885(07)60120-4
中图分类号：
学科分类号：
摘要：
This article proposes a simple pilot-aided channel estimation method based on correlation in time domain for multiple-input and multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. Pilot symbols in all transmit antennas are generated from different circular shifting of a certain sequence. Through once correlation, the receiver can obtain time-domain pulse responses for channel fading from all transmit antennas to a certain receive antenna, from which channel estimation in frequency domain can be obtained. Beyond 3G time-division duplex (B3G-TDD) uplink is introduced, and the channel estimation method is used in it. Theoretical analysis and simulation are both carried out. Mean square error (MSE) performance shows that the method can exhibit precise estimation. Complexity analysis proves it requires very low complexity. System simulation result shows that it guarantees the performance of B3G-TDD uplink very well. © 2007 The Journal of China Universities of Posts and Telecommunications.
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收藏
页码：23 / 27
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