Title :
Comparative study of maximum likelihood detection for two multi-rate DS/CDMA systems
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
29 Jun-4 Jul 1997
Abstract :
Multi-rate communication systems are considered for the transmission of direct-sequence code-division multiple-access wireless signals. Performance for jointly optimal detection is studied in the context of multi-code access and variable spreading length access. Prior results for dual-rate systems are extended to multi-rate systems and the effects of correlation between high-rate users in the multi-code scenario are explored. Comparison of the two multirate systems is done via the calculation of asymptotic multi-user performance measures and appropriate bounds
Keywords :
code division multiple access; correlation theory; maximum likelihood detection; pseudonoise codes; spread spectrum communication; asymptotic multi-user performance measures; bounds; correlation; direct-sequence code-division multiple-access wireless signals; high-rate users; jointly optimal detection; maximum likelihood detection; multi-code access; multi-rate DS/CDMA systems; multi-rate communication systems; variable spreading length access; Bandwidth; Context; Electrical resistance measurement; Maximum likelihood detection; Multiaccess communication; OFDM; Wireless communication;
Conference_Titel :
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location :
Ulm
Print_ISBN :
0-7803-3956-8
DOI :
10.1109/ISIT.1997.613284
