Title :
Synchronization consideration in multiuser CDMA environment
Author :
Zhaocheng, Wang ; Jing, Wang ; Yang Zhiging ; Yan, Yao
Author_Institution :
State Key Lab., Tsinghua Univ., Beijing, China
Abstract :
We consider the impact of multiple access interference (MAI) on noncoherent code tracking loops (in conventional CDMA matched filter detectors) and a novel interference canceller is proposed in order to eliminate the steady-state tracking error, reduce the RMS tracking jitter and realize fast and reliable synchronization. We introduce the idea of multiuser detection such as successive interference cancellation. Simulation results demonstrate the loop exhibits a higher performance than that of the conventional code tracking loop
Keywords :
code division multiple access; filtering theory; interference suppression; jitter; matched filters; pseudonoise codes; radiofrequency interference; signal detection; spread spectrum communication; synchronisation; tracking; CDMA matched filter detectors; DS-CDMA; RMS tracking jitter reduction; interference canceller; multiple access interference; multiuser CDMA environment; multiuser detection; noncoherent code tracking loops; performance analysis; simulation results; steady-state tracking error; successive interference cancellation; synchronization; Detectors; Interference cancellation; Interference elimination; Jitter; Matched filters; Multiaccess communication; Multiple access interference; Multiuser detection; Steady-state; Tracking loops;
Conference_Titel :
Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2916-3
DOI :
10.1109/ICCT.1996.545138
