Title :
Performance evaluation of space-time codes in wideband CDMA over frequency-selective Rayleigh fading downlink channel
Author :
Kunnari, Esa ; Tujkovic, Djordje
Author_Institution :
Centre for Wireless Commun., Oulu Univ., Finland
Abstract :
The performance of space-time block and trellis codes proposed for narrowband systems is evaluated in wideband code division multiple access (CDMA) system operating over a frequency-selective Rayleigh fading channel. The evaluation is done by both analysis and computer simulations. The considered space-time codes are shown to provide considerable performance improvement over uncoded single-antenna transmission at high signal-to-interference-plus-noise ratio (SINR), but at high system loads the performance is pronouncedly limited in frequency-selective channels due to increased interference
Keywords :
Rayleigh channels; block codes; cellular radio; channel coding; code division multiple access; mobile radio; trellis codes; Rayleigh fading channel; SINR; W-CDMA; block codes; downlink; frequency-selective fading channel; mobile radio; performance evaluation; signal-to-interference-plus-noise ratio; space-time codes; trellis codes; wideband code division multiple access; Computer simulation; Convolutional codes; Fading; Frequency conversion; Interference; Multiaccess communication; Narrowband; Signal to noise ratio; Space time codes; Wideband;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.937232
