Paper Information

Journal:   IRANIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING (IJECE)   SUMMER-FALL 2010 , Volume 9 , Number 2; Page(s) 134 To 138.
 
Paper: 

PERFORMANCE AND COMPLEXITY IMPROVEMENT OF LEAST SQUARES CHANNEL ESTIMATION IN MIMO SYSTEMS

 
Author(s):  TARIQUL ISLAM M., NUMAN M.W., MISRAN N.
 
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Abstract: 

Multiple-input multiple-output (MIMO) system has come forward as a generic technique that promises to be a strong contender for future generation wireless communication. In this paper, orthogonal matrix triangularization is utilized to carry out performance improvement and complexity reduction of MIMO channel estimation. The technique is applied on least squares (LS) channel estimation and the performance evaluations are validated through computer simulations using MATLABÒ in terms of bit error rate (BER). Simulation results indicate that the proposed method considerably improves the system performance and significantly reduces the complexity caused by matrix inversion. The performance and complexity of the proposed method clearly outperforms the conventional LS channel estimation method and proves itself a smart solution for MIMO channel estimation.

 
Keyword(s): MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO), CHANNEL ESTIMATION, LEAST SQUARES (LS), ORTHOGONAL MATRIX TRIANGULARIZATION, CHANNEL STATE INFORMATION (CSI)
 
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