基于多径时延跟踪的MIMO-OFDM系统信道估计

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (4): 359-363.

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Channel Estimation for MIMO-OFDM Systems Based on Parametric Channel Modeling

JING Ya, WANG Dong-ming, CHEN Ming, CHENG Shi-xin

National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China

Received:2004-04-15 Revised:2004-09-17 Online:2005-07-31 Published:2005-07-31

Abstract

Abstract: A low complexity channel estimation algorithm based on the tracking of multipath time delays is presented for broadband multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems.The estimator's performance and computation complexity is analyzed.Simulation results show that the tracking of multipath time delays can improve the channel estimation performance and reduce the computation complexity by decreasing the dimension of estimated parameters.

Key words: MIMO-OFDM, channel estimation, sparse channel, multipath time delays tracking

CLC Number:

TN929.5

JING Ya, WANG Dong-ming, CHEN Ming, CHENG Shi-xin. Channel Estimation for MIMO-OFDM Systems Based on Parametric Channel Modeling[J]. Journal of Applied Sciences, 2005, 23(4): 359-363.

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Channel Estimation for MIMO-OFDM Systems Based on Parametric Channel Modeling

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