New MIMO-OFDM Channel Estimation Algorithm with Low Complexity

Xu Guo-ping; Zhang Xin; Yang Da-eheng

doi:10.3724/SP.J.1146.2006.01478

Volume 30 Issue 4

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(4): 797-800

Xu Guo-ping, Zhang Xin, Yang Da-eheng . New MIMO-OFDM Channel Estimation Algorithm with Low Complexity[J]. Journal of Electronics & Information Technology, 2008, 30(4): 797-800. doi: 10.3724/SP.J.1146.2006.01478

Citation:

Xu Guo-ping, Zhang Xin, Yang Da-eheng . New MIMO-OFDM Channel Estimation Algorithm with Low Complexity[J]. Journal of Electronics & Information Technology, 2008, 30(4): 797-800. doi: 10.3724/SP.J.1146.2006.01478

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New MIMO-OFDM Channel Estimation Algorithm with Low Complexity

doi: 10.3724/SP.J.1146.2006.01478

Received Date: 2006-09-26
Rev Recd Date: 2007-03-12
Publish Date: 2008-04-19

Abstract

Abstract

Based on the m-sequence，a time-domain channel estimation algorithm for Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is designed. The m-sequence with Cyclic Prefix (CP) is inserted between OFDM symbols in time domain as training sequence. The cross-correlation is calculated between the received sequence with CP removed and the appointed circular shifted m-sequence, which takes reliability of the estimation of channel impulse response on account of the two-valued auto-correlation property of the m-sequence, thereby the channel frequency response can be advisably decided. The results of both theoretical analysis and simulation show that the proposed algorithm possesses an impressive performance with less system overhead and lower computation burden than conventional algorithms.

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References(1)

References

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