Spreading Code Effects on Synchronous Conventional and MMSE Multiuser Detection Algorithms

Multiuser detection technique implies the joint demodulation of different overlapping data streams sent by different users, thus improving their individual performances based on the knowledge of some key parameters of all users. Each user is identified by its own signature code, which should be, in the ideal case, orthogonal from all the others. This paper analyzes the performances synchronous of conventional and MMSE multiuser detectors algorithms when different types of spreading codes are used. The results are compared in terms of Bit Error Rate (BER) as a function of Signal to Noise Ratio (SNR) as well as in terms of the overall signal power spectra density characteristics. The results obtained lead to several interesting conclusions that are highlighted in the last section.


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  • Accession Number: 01345088
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 8 2011 3:39PM