Title :
Multiuser detection for multi-rate CDMA in multi-path fading channels
Author :
Fu, Po-Wei ; Chen, Kwang-Cheng
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Multi-code (MC) access and variable-spreading-length (VSL) access are two widely applied realizations for multi-data-rate services in direct-sequence code-division multiple-access (DS/CDMA) systems. We study the behavior of these two multi-rate realizations operating in multi-path fading channels. Bounds of the minimum probability of error based on maximum-likelihood sequence detection are developed for performance evaluations. Asymptotic multiuser efficiency is also analyzed as another performance index
Keywords :
code division multiple access; error statistics; fading channels; maximum likelihood detection; multipath channels; multiuser channels; signal detection; spread spectrum communication; DS/CDMA systems; MSLD; asymptotic multiuser efficiency; direct-sequence code-division multiple-access; maximum-likelihood sequence detection; minimum error probability; multi-code access; multi-data-rate services; multi-rate CDMA; multipath fading channels; multiuser detection; performance evaluation; performance index; variable-spreading-length access; AWGN; Communications technology; Data engineering; Fading; Maximum likelihood detection; Multiaccess communication; Multiple access interference; Multiuser detection; Performance analysis; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.883302
