On the Performance of Band-Limited Asynchronous DS-CDMA over Nakagami-m Channels
Wei, H., Yang, L-L. and Hanzo, L. (2006) On the Performance of Band-Limited Asynchronous DS-CDMA over Nakagami-m Channels. IEEE Transactions on Wireless Communications, 5, (7), 1586-1593.
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 chipwaveforms. 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 oversampled 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. Index Terms—Code-division multiple-access, chip waveform, Gaussian approximation, Nakagami, band-limited, normalized bandwidth.
|Divisions:||Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control
|Date Deposited:||18 Sep 2006|
|Last Modified:||20 Aug 2012 04:09|
|Contributors:||Wei, H. (Author)
Yang, L-L. (Author)
Hanzo, L. (Author)
|Further Information:||Google Scholar|
|ISI Citation Count:||7|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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