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An evaluation of direct sequence CDMA for future mobile communication networks

Research output: ResearchAbstract

  • A Bateman
  • MA Beach
  • A Hammer
  • SA Allpress
  • JP McGeehan
Original languageEnglish
Pages63 - 70
StatePublished - May 1991


The performance and some of the implementation aspects of a practical mobile radio communications network employing direct-sequence code-division multiple access (DS-CDMA) are examined. The use of spread-spectrum techniques results in a wideband system, thus permitting the potential exploitation of multipath signal energy and permitting a means of reducing interference arising from other users of the spectrum. An analytical performance model is developed in order to assess the spectral efficiency of a DS-CDMA communications network. The computer model permits the performance evaluation of various path diversity schemes alongside numerous digital-modulation and error-correction coding techniques while operating in a mobile radio channel. In order to substantiate the results presented, novel power control and handoff protocols are also proposed in light of the assumptions made.

Additional information

Terms of use: Copyright © 1991 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 1991. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Name of Conference: 41st Vehicular Technology Conference 1991 (VTC 1991-Spring) Venue of Conference: St. Louis, MO

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