Title :
Multi-Chip Differential Space-Time Block Coding for DS-CDMA
Author :
Cheung, Shun K. ; Schober, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC
Abstract :
In this paper, we propose a novel space-time coding scheme for fast time-variant direct-sequence code-division multiple access (DS-CDMA) channels. The proposed scheme employs multi-chip differential space-time block coding (MC-DSTBC) and robustness against fast fading is further improved by low-complexity decision-feedback differential detection (DF-DD). A detailed performance analysis of MC-DSTBC with DF-DD is provided. Both analytical and simulation results show in good agreement the excellent performance of the novel design in fast time-variant channels
Keywords :
block codes; code division multiple access; differential detection; space-time codes; spread spectrum communication; time-varying channels; wireless channels; DF-DD; DS-CDMA; MC-DSTBC; direct-sequence code-division multiple access channels; fast fading; fast time-variant channels; low-complexity decision-feedback differential detection; multi-chip differential space-time block coding; Analytical models; Block codes; Differential phase shift keying; Direct-sequence code-division multiple access; Fading; Local oscillators; Multiaccess communication; Performance analysis; Robustness; Satellite communication;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1683267
