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

doi:1005-8885 (2007) 02-0023-05

中国邮电高校学报(英文) ›› 2007, Vol. 14 ›› Issue (2): 23-27.doi: 1005-8885 (2007) 02-0023-05

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

周明宇;李立华;陶晓峰

Beijing University of Posts and Telecommunications

收稿日期:2006-11-01 修回日期:1900-01-01 出版日期:2007-06-30

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

ZHOU Ming-yu;LI Li-hua;JIANG Jun; ZHONG Ming-hua; TAO Xiao-feng

Beijing University of Posts and Telecommunications

Received:2006-11-01 Revised:1900-01-01 Online:2007-06-30

摘要/Abstract

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.

关键词:

multiple-input and multiple-output (MIMO); orthogonal frequency division multiplexing (OFDM);channel estimation, time-domain pulse response

Abstract:

Key words:

multiple-input and multiple-output (MIMO); orthogonal frequency division multiplexing (OFDM); channel estimation, time-domain pulse response

中图分类号:

TN911.23

ZHOU Ming-yu;LI Li-hua;JIANG Jun; ZHONG Ming-hua; TAO Xiao-feng. MIMO-OFDM channel estimation method utilizing correlation in time domain for B3G-TDD uplink[J]. Acta Metallurgica Sinica(English letters), 2007, 14(2): 23-27.

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

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

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