Approximate Expression of BER Performance in DS-CDMA Systems over Multi-Path Fading Channels

Fumihito SASAMORI  Shiro HANDA  Fumiaki MAEHARA  Fumio TAKAHATA  Shinjiro OSHITA  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.8   pp.2523-2528
Publication Date: 2003/08/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technology
DS-CDMA,  bit error rate,  multi-path fading,  Doppler frequency,  Rician factor,  

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The transmission quality in mobile wireless communication systems is affected by not only AWGN but also multi-path fading. Particularly, the Doppler frequency, the delay spread and the Rician factor have a great influence upon the quality over fading channels. This letter proposes the approximate equation for easily calculating the BER in DS-CDMA systems over multi-path fading channels. The validity of the approximate equation is confirmed from the fact that the BER calculated by the equation coincides with that by the computer simulation.