Title :
Fixed point error analysis of multiuser detection and synchronization algorithms for CDMA communication systems
Author :
Sengupta, Chaitali ; Das, Suman ; Cavallaro, Joseph R. ; Aazhang, Behnaam
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
Conventional correlation based single-user techniques for direct sequence code division multiple access (DS-CDMA) wireless communication systems are susceptible to performance degradation due to interference from other users. Previous research has focused on development of several multiuser techniques where information about multiple users is used to improve performance for each individual user. Due to performance benefits of these methods, they are attractive candidates for implementation in future cellular systems. In this paper we present an error analysis of fixed point implementation of some of these techniques
Keywords :
cellular radio; code division multiple access; error analysis; interference suppression; radiofrequency interference; spread spectrum communication; synchronisation; CDMA communication systems; DS-CDMA; cellular systems; direct sequence code division multiple access; fixed point error analysis; multiuser detection; performance; synchronization algorithms; wireless communication systems; Base stations; Degradation; Delay; Error analysis; Frequency synchronization; Hardware; Modulation coding; Multiaccess communication; Multiuser detection; Timing;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.679557
