Particle Filtering for Multiple Access DS/CDMA Systems DS/CDMA Channel Estimation

Rafael Oliveira Ribeiro, Taufik Abrao

Abstract


This article discusses computational implementation aspects and performance of a Bayesian methodology, namely particle filter (PF). The PF channel estimation technique is directly applied to the channel coefficients estimation of DS/CDMA systems. Simulation results for non-line-of-sight (NLOS) Rayleigh fading channel propagation have indicated that the bootstrap PF estimator is capable to provide RMSE in the range of [10-3 ; 10-2] for a wide range of multiple access interference (MAI) levels and signal-noise ratio (SNR), and still be able to offer robustness to near-far ratio (NFR) effect.


Keywords


Channel parameters estimation; Bayesian estimator; Particle filter; Bootstrap resampling; DS/CDMA



DOI: http://dx.doi.org/10.5433/1679-0375.2013v34n1p107

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Semin., Ciênc. Exatas Tecnol.
Londrina - PR - Brazil
E-ISSN: 16790375
DOI: 10.5433/1679-0375
Email: seminaexatas@uel.br
 
This journal is licensed with a license Creative Commons Attribution-NonCommercial 4.0 International.