Title :
Performance of switched selection transmission diversity in FDD/DS-CDMA system
Author :
Aziz, Maher ; Shokair, Mona ; Nasr, Mohamed E.
Author_Institution :
Banha Electron., Banha
Abstract :
In this paper, the performance of switched selection transmission diversity in FDD/DS-CDMA system will be investigated. This performance will be evaluated by considering the effect of space distance between the diversity antennas and the maximum Doppler frequency (fd) on bit error rate (BER) performance under optimum conditions. This performance is not clarified until now. Moreover, the effect of error on feedback antenna selection bit on uplink will be studied. Rayleigh fading will be assumed. The proposed scheme significantly decreases the average transmit power at the base station or the mobile station and shows robustness against the BER performance degradation compared with the conventional scheme.
Keywords :
Rayleigh channels; antennas; code division multiple access; diversity reception; error statistics; frequency division multiplexing; spread spectrum communication; FDD/DS-CDMA system; Rayleigh fading; bit error rate; diversity antennas; feedback antenna selection; switched selection transmission diversity; Antenna feeds; Antennas and propagation; Bit error rate; Diversity methods; Feedback; Frequency diversity; Multiaccess communication; Rayleigh channels; Receiving antennas; Transmitting antennas; DS-CDMA; antenna selection and transmission diversity;
Conference_Titel :
Radio Science Conference, 2008. NRSC 2008. National
Conference_Location :
Tanta
Print_ISBN :
978-977-5031-95-2
DOI :
10.1109/NRSC.2008.4542337
