Title :
Interference Cancelation in Non-Coherent CDMA Systems Using Parallel Iterative Algorithms
Author :
Shahtalebi, Kamal ; Bakhshi, Gholam Reza ; Rad, Hamidreza Saligheh
Author_Institution :
Univ. of Isfahan, Esfahan
fDate :
March 31 2008-April 3 2008
Abstract :
Parallel least mean square-partial parallel interference cancellation (PLMS-PPIC) is a partial interference cancellation which employs adaptive multistage structure (Shahtalebi et al., 2007). In this algorithm the channel phases for all users are assumed to be known. Having only their quarters in (0, 2pi), a modified version of PLMS-PPIC is proposed in this paper to simultaneously estimate the channel phases and the cancellation weights. Simulation examples are given in the cases of balanced, unbalanced and time varying channels to show the performance of the modified PLMS-PPIC method.
Keywords :
code division multiple access; interference (signal); telecommunication channels; PLMS-PPIC; adaptive multistage structure; channel phases; interference cancelation; noncoherent CDMA systems; parallel iterative algorithms; parallel least mean square; partial interference cancellation; partial parallel interference cancellation; time varying channels; Communications Society; Detectors; Information technology; Interference cancellation; Iterative algorithms; Multiaccess communication; Multiple access interference; Peer to peer computing; Phase estimation; USA Councils;
Conference_Titel :
Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1997-5
DOI :
10.1109/WCNC.2008.74
