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http://dx.doi.org/10.7840/KICS.2012.37.6A.480

Simple Blind Channel Estimation Scheme for Downlink MC-CDMA Systems  

Seo, Bang-Won (한국전자통신연구원 차세대통신연구부문 이동통신방식연구팀)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.6A, 2012 , pp. 480-487 More about this Journal
Abstract
In multicarrier code-division multiple access (MC-CDMA) systems, conventional blind channel estimation schemes require the inverse matrix calculation or eigenvalue decomposition of the received signal covariance matrix. Therefore, computational complexity of the conventional schemes is too high and they cannot be employed in downlink systems. In this paper, we propose a simple blind channel estimation scheme with very low computational complexity. Simulation results show that the proposed scheme has better channel estimation and bit error rate (BER) performance than the conventional schemes.
Keywords
MC-CDMA; downlink system; channel estimation; blind estimation;
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