Capacity for cellular CDMA PCS´s in Nakagami fading log-normal shadowing channels

Author

Mokhtar, M.A. ; Gupta, S.C.

Author_Institution

Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA

fYear

1992

fDate

29 Sep-1 Oct 1992

Abstract

Spread-spectrum DS/CDMA is a powerful technique for implementing PCS. However, DC/CDMA suffers from the `near-far´ problem, and hence, power control for the signals involved is required. A model for DS/CDMA PCS is studied under the effect of Nakagami fading and log-normal shadowing. The interference from neighboring cells is studied and obtained. The capacity of the system is then evaluated as a function of the maximum number of active users within the cell, for different cases of the fading channel parameters. The capacity improvement through applying a suitable power control scheme is obtained and compared with the case when no power control is used

Keywords

cellular radio; channel capacity; code division multiple access; fading; personal communication networks; power control; spread spectrum communication; telecommunications control; DS/CDMA PCS; Nakagami fading; cellular radio; fading channel parameters; interference; log-normal shadowing channels; power control; spread spectrum DS/CDMA; system capacity; Attenuation; Base stations; Control systems; Fading; Interference; Multiaccess communication; Personal communication networks; Power control; Power system modeling; Shadow mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications, 1992. ICUPC '92 Proceedings., 1st International Conference on

Conference_Location

Dallas, TX

Print_ISBN

0-7803-0591-4

Type

conf

DOI

10.1109/ICUPC.1992.240775

Filename

240775