Title
Blind adaptive code-constrained constant modulus algorithms for CDMA interference suppression in multipath channels
Abstract
A code-constrained constant modulus (CCM) design criterion for linear receivers is investigated for direct sequence code division multiple access (DS-CDMA) in multipath channels based on constrained optimization techniques. A computationally efficient recursive least squares (RLS) type algorithm for jointly estimating the parameters of the channel and the receiver is developed in order to suppress multiaccess (MAI) and inter-symbol interference (ISI). An analysis of the method examines its convergence properties and simulations under nonstationary environments show that the novel algorithms outperform existent techniques.
Year
DOI
Venue
2005
10.1109/LCOMM.2005.04022
Communications Letters, IEEE
Keywords
Field
DocType
channel estimation,code division multiple access,interference suppression,intersymbol interference,least squares approximations,multipath channels,multiuser detection,optimisation,radio receivers,spread spectrum communication,CCM design,DS-CDMA,ISI,MAI,RLS algorithm,blind adaptive algorithms,channel estimation,code-constrained constant modulus,constrained optimization techniques,direct sequence code division multiple access,inter-symbol interference,interference suppression,linear receivers,multiaccess interference,multipath channel,multiuser detection,recursive least squares
Least squares,Intersymbol interference,Computer science,Multiuser detection,Algorithm,Adaptive algorithm,Code division multiple access,Recursive least squares filter,Spread spectrum,Constrained optimization
Journal
Volume
Issue
ISSN
9
4
1089-7798
Citations 
PageRank 
References 
50
1.53
6
Authors
2
Name
Order
Citations
PageRank
de Lamare, R.C.165233.42
Raimundo Sampaio-Neto236415.03