Paper Info
Title
Blind Multiple Access Interference Suppression Algorithm Based on Relaxed Subgradient Projection for DS/CDMA Systems
Abstract
A novel blind multiple access interference suppression algorithm based on relaxed parallel subgradient projection is proposed for DS/CDMA systems. The qualification “relaxed” is manifest in two aspects: first, the new expression for updating the interference suppression filter coefficients vector relaxes paralleled projection fields and reduces computation complexity. In addition, the relaxation parameter in the updated process is adaptively determined to guarantee the interference suppression filter coefficients vector falling into fields containing the optimal filter coefficients vector after several iterations. Theoretical analysis and simulation results conclude that this algorithm has a fast convergence speed, steady interference suppression performance, low computation and low bit error rate.
Year
DOI
Venue
2010
10.1007/s00034-010-9170-z
CSSP
Keywords
Field
DocType
Relaxed parallel subgradient projection, Multiple access interference suppression, DS/CDMA systems
Convergence (routing),Mathematical optimization,Subgradient method,Cdma systems,Control theory,Word error rate,Algorithm,Interference (wave propagation),Mathematics,Computation complexity,Computation,Filter design
Journal
Volume
Issue
ISSN
29
4
15315878
Citations 
PageRank 
References 
0
0.34
16
Authors
3
Name
Order
Citations
PageRank
Xin Wei15910.53
Li Zhao219822.70
Cairong Zou341527.19