Code acquisition in DS/CDMA systems by employing a detector based on a posteriori probability calculation

M. Tahir Abbas Khan, Nobuoki Eshima, Yutaka Jitsumatsu, Tohru Kohda

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A detector based on calculation of a posteriori probability is proposed for code acquisition in singleuser direct sequence code division multiple access (DS/CDMA) systems. Available information is used for decision making, unlike conventional methods which only use a part of it. Although this increases the overhead in terms of additional memory and computational complexity, significant performance improvements are achieved. The frame work is extended to multiuser systems and again mean acquisition time/correct acquisition probability performance is superior to the conventional systems although computational complexity is high. An approximate multiuser method with significantly less complexity is also derived.

Original languageEnglish
Pages (from-to)4047-4055
Number of pages9
JournalIEICE Transactions on Communications
VolumeE88-B
Issue number10
DOIs
Publication statusPublished - Oct 2005

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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