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

fYear

2008

fDate

March 31 2008-April 3 2008

Firstpage

392

Lastpage

396

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE

Conference_Location

Las Vegas, NV

ISSN

1525-3511

Print_ISBN

978-1-4244-1997-5

Type

conf

DOI

10.1109/WCNC.2008.74

Filename

4489105