Title :
Spatial and temporal multipath diversity for DS/CDMA system
Author :
Ugweje, Okechukwu C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Akron Univ., OH, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
Spatial diversity commonly used to mitigate the effect of fading in mobile cellular communication systems is analyzed in this paper. Closed form analytical expressions of the bit error rate and outage probability are derived for three fading conditions namely: (a) independent and identically distributed (iid) fading; (b) independent but not identical distributed fading; and (c) correlated fading. The derived expressions are for the generalized binary detection schemes including binary phase shift keying and frequency shift keying. Analysis of results indicate that spatial diversity combined with temporal multipath diversity can achieve significant system improvements. When the diversity channels are correlated, more channels are necessary to achieve similar gains.
Keywords :
cellular radio; code division multiple access; diversity reception; error statistics; fading channels; frequency shift keying; multipath channels; personal communication networks; phase shift keying; signal detection; spread spectrum communication; DS-CDMA system; PCS; binary phase shift keying; bit error rate; correlated fading; frequency shift keying; generalized binary detection schemes; iid fading; independent and identically distributed fading; independent but not identical distributed fading; mobile cellular communication; outage probability; personal communication services; spatial diversity; temporal multipath diversity; AWGN; Bit error rate; Buildings; Diversity reception; Fading; Microcell networks; Multiaccess communication; Multipath channels; Radiofrequency interference; System performance;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002808
