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On the performance of band-limited asynchronous DS-CDMA over nakagami-m channels

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3 Author(s)
Wei, Hua ; Sch. of Electron. & Comput. Sci., Southampton Univ. ; Lie-Liang Yang ; Hanzo, L.

In this paper we investigated the BER performance of DS-CDMA using various chip-waveforms, which include three time-limited chip-waveforms and two band-limited chip-waveforms. Closed-form formulae were derived for evaluating the achievable bit-error rate performance with the aid of the standard Gaussian approximation, when communicating over a Nakagami-m channel. The time-limited waveforms impose a low implementational complexity, since they maybe over sampled and read from a look-up table. However, they are outperformed by the frequency-domain raised-cosine waveform as well as the optimum waveform specifically designed by Cho and Lehnert for achieving the lowest possible bit error rate

Published in:

Wireless Communications, IEEE Transactions on  (Volume:5 ,  Issue: 7 )

Date of Publication:

July 2006

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