Title :
Capacity of direct-sequence CDMA for cellular radio
Author :
Stüber, G.L. ; Kchao, C. ; Hightower, N.C. ; Frerking, M.D.
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
DS CDMA is shown to provide more capacity than the proposed AMPS-D cellular standard. In order to achieve this capacity improvement, it is necessary to use antenna diversity with a 2 or 3-tap RAKE receiver. The degree of improvement depends on the type of detection and diversity combining being used, and the amount of channel dispersion. In order to achieve uniform quality of service throughout the coverage area it is shown that it is necessary to use power control on both the forward and reverse channels
Keywords :
cellular radio; channel capacity; code division multiple access; spread spectrum communication; DS CDMA; RAKE receiver; antenna diversity; capacity; cellular radio; channel dispersion; coverage area; detection; direct sequence CDMA; diversity combining; forward channels; power control; reverse channels; service quality; Delay; Diversity reception; Fading; Land mobile radio cellular systems; Multiaccess communication; Multipath channels; Propagation losses; Quality of service; Radio transmitters; Receiving antennas;
Conference_Titel :
Wireless Communications, 1992. Conference Proceedings., 1992 IEEE International Conference on Selected Topics in
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-0723-2
DOI :
10.1109/ICWC.1992.200747
