Interference Suppression in Multiuser Systems Based on Bidirectional Algorithms
Abstract
This paper presents adaptive bidirectional minimum mean-square error parameter estimation algorithms for fast-fading channels. The time correlation between successive channel gains is exploited to improve the estimation and tracking capabilities of adaptive algorithms and provide robustness against time-varying channels. Bidirectional normalized least mean-square and conjugate gradient algorithms are devised along with adaptive mixing parameters that adjust to the time-varying channel correlation properties. An analysis of the proposed algorithms is provided along with a discussion of their performance advantages. Simulations for an application to interference suppression in multiuser DS-CDMA systems show the advantages of the proposed algorithms.
Cite
@article{arxiv.1510.03492,
title = {Interference Suppression in Multiuser Systems Based on Bidirectional Algorithms},
author = {P. Clarke and R. C. de Lamare},
journal= {arXiv preprint arXiv:1510.03492},
year = {2015}
}
Comments
11 figures, Eurasip journal on wireless communications and networking, 2015