LAS-CDMA using Various Time Domain Chip-Waveforms
Wei, H. and Hanzo, L. (2005) LAS-CDMA using Various Time Domain Chip-Waveforms. In, IEE 3G and Beyond, IEE Savoy Place, London, UK, 07 - 09 Sep 2005. , 273-277.
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Description/Abstract
LAS CDMA exhibits a significantly better performance than that of classic random code based DS-CDMA, when operating in a quasi-synchronous scenario. Classic frequency-domain raised cosine Nyquist filtering is known to show the best possible performance, but its complexity may be excessive in highchip-rate systems. Hence in these systems often low-complexity time-domain waveform shaping is considered. Motivated by this fact, the achievable performance of LAS-CDMA is investigated in conjunction with three different time-limited chipwaveforms, which exhibit an infinite bandwidth. The raised cosine time-domain waveform based DS-CDMA system is shown to achieve the best performance in the context of a strictly band-limited system, because its frequency-domain spectral side-lobes are relatively low.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Event Dates: 7-9 September 2005 |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control |
| Item ID: | 261684 |
| Date Deposited: | 15 Dec 2005 |
| Last Modified: | 02 Mar 2012 12:40 |
| Contributors: | Wei, H. (Author) Hanzo, L. (Author) |
| Date: | 2005 |
| Additional Information: | Event Dates: 7-9 September 2005 |
| Status: | Published |
| Further Information: | Google Scholar |
| URI: | http://eprints.soton.ac.uk/id/eprint/261684 |
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