Radial Basis Functions and Pso Assisted Multiuser Detection for Ds-cdma
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چکیده
The two major factors which contribute to erroneous detection in a DS-CDMA system are the MAI and noise. The former appears due to non-orthogonal spreading codes while the latter is the induced by the channel. Since the traditional detectors give a soft output, the presence of MAI and channel noise make these soft decisions non-linearly separable. This chapter describes the use of Radial Basis Functions along with PSO for multiuser detection in a synchronous environment. Section 4.2 sheds light on basics, brief history and applications of radial basis functions. Section 4.3 discusses the use of PSO-assisted multiuser detection using radial basis functions for synchronous DS-CDMA system. Section 4.4 discusses the simulation results. Section 4.5 concludes the chapter.
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