Performance of multi-user MIMO OFDM channel estimation with LS and MMSE for 802.11n systems

Authors:
Jung Nam Bae;Jin Young Kim
Affiliations:
Department of Wireless Communications Engineering, Kwangwoon University, Seoul, Korea;Department of Wireless Communications Engineering, Kwangwoon University, Seoul, Korea
Venue:
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Year:
2009

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Abstract

High transmission data rate, spectral efficiency, and reliability are necessary for future wireless communications systems. In this paper, we study the performance of multi-user multiple-input multiple-output channel estimation methods using training sequences. We consider the popular linear least square (LS) and minimum mean-square-error (MMSE) approaches. The results of computer simulation show the improvement of system capacity in Rayleigh fading channel.