An evaluation of direct sequence CDMA for future mobile communication networks
- 1 May 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 10903038,p. 63-70
- https://doi.org/10.1109/vetec.1991.140446
Abstract
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.Keywords
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