Two-stage nonlinear detector in DS/SSMA communications with impulse noise

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)387-394
Journal / PublicationIEE Proceedings: Communications
Issue number6
Publication statusPublished - 1998


A new two-stage nonlinear detector for synchronous DS/SSMA communications in impulsive channels is presented and analysed. In the detector, an interference cancellation scheme is used such that the effect of the multiple-access interference on the system performance can be alleviated. For a multiuser system with long spreading sequences an approximate error probability is derived and shows that the new detector is insensitive to the 'near-far' effect and gives a near-single-user performance. For cases with short spreading sequences Monte-Carlo simulation is carried out to estimate the error probability and the results show that the detector performs robustly in various mixtures of noise. © IEE, 1997.

Research Area(s)

  • Near-far effect, Spread spectrum communications, Synchronous detection