Title :
Synchronous DS-SSMA with improved decorrelating decision-feedback multiuser detection
Author :
Wei, Lei ; Schlegel, Christian
Author_Institution :
Digital Commun. Group, Univ. South Australia, The Levels, SA, Australia
fDate :
27 Jun-1 Jul 1994
Abstract :
Several multiuser detectors for direct sequence spread-spectrum multiple-access (DS-SSMA) systems have been. Of particular interest is the decorrelating decision-feedback detector (DDFD). It employs forward decorrelating and feedback filters to cancel multiuser interference. The DDFD has several disadvantages. The paper addresses these problems and an improved DDFD, whose complexity is linear in the number of users is proposed
Keywords :
correlation methods; filters; interference suppression; multi-access systems; radiofrequency filters; radiofrequency interference; spread spectrum communication; synchronisation; DS-SSMA systems; decorrelating decision-feedback detector; direct sequence spread-spectrum; feedback filters; forward decorrelating filters; multiple-access systems; multiuser detection; multiuser interference cancellation; synchronous DS-SSMA; Decoding; Decorrelation; Detectors; Digital communication; Feedback; Filters; Gold; Interference; Multiuser detection; Noise measurement;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394839
