Title :
On the error probability of a DS/SSMA system with a noncoherent M-ary orthogonal modulation
Author_Institution :
AT&T Bell Labs., Whippany, NJ, USA
Abstract :
A CDMA system is under development for the next-generation digital cellular systems. One feature of the system is the inclusion of a pilot signal in the forward (base-station-to-mobile) link so as to provide a coherent reference to mobile stations. In the reverse link, however, no pilot is used for power efficiency considerations; thus, a noncoherent reception is used for this direction. The objective is to present a receiver structure that may be used in the reverse link and to analyze its performance in terms of the error probability. Assuming that the reverse link uses a noncoherent M-ary orthogonal modulation, the symbol error probability is derived analytically. In addition, the validity of the analysis results is demonstrated by computer simulations
Keywords :
cellular radio; code division multiple access; digital radio systems; phase shift keying; probability; spread spectrum communication; CDMA system; DS/SSMA system; OQPSK; base station; coherent reference; computer simulations; digital cellular systems; forward link; mobile stations; noncoherent M-ary orthogonal modulation; noncoherent reception; performance analysis; pilot signal; power efficiency; receiver structure; reverse link; symbol error probability; Base stations; Computer simulation; Correlators; Digital modulation; Error probability; Filtering theory; Interference; Multiaccess communication; Performance analysis; Signal processing;
Conference_Titel :
Vehicular Technology Conference, 1992, IEEE 42nd
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0673-2
DOI :
10.1109/VETEC.1992.245351
