Title :
Performance analysis of space-time transmit diversity for wideband CDMA
Author :
You Xiaohu Yangxin
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing
Abstract :
In the updated WCDMA standard, the open loop downlink transmit diversity employs a space-time block coding-based transmit diversity (STTD). This paper presents a RAKE receiver using a single receiver antenna to support the WCDMA systems adopting STTD. Analytic and simulation results show that the proposed receiver provides considerable performance gains against Rayleigh fading at pedestrian and vehicular speeds. In addition, the effects of channel estimation errors on the performance of the RAKE receiver are evaluated
Keywords :
Rayleigh channels; block codes; channel coding; code division multiple access; mobile radio; radio receivers; receiving antennas; RAKE receiver; Rayleigh fading; STTD; WCDMA standard; channel estimation errors; downlink transmit diversity; open loop; pedestrian speed; performance; receiving antenna; space-time block coding; transmit diversity; vehicular speed; wideband CDMA; Analytical models; Downlink; Fading; Multiaccess communication; Multipath channels; Performance analysis; Performance gain; RAKE receivers; Receiving antennas; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945048
