Distributed rao-blackwellized point mass filter for blind equalization in receiver networks. Bordin, C. J. & Bruno, M. G. S. In 2015 23rd European Signal Processing Conference (EUSIPCO), pages 2186-2190, Aug, 2015.
Distributed rao-blackwellized point mass filter for blind equalization in receiver networks [pdf]Paper  doi  abstract   bibtex   
We describe new Bayesian algorithms for cooperative blind equalization in a network in which the signal broadcast by a single transmitter is received by multiple remote nodes through distinct frequency-selective channels. The algorithms are based on Rao-Blackwellized point mass filters, and approximate the posterior densities of the unknown channel parameters by Gaussian mixtures of fixed order. To keep computations treatable, density mixtures are reduced by a modified version of West's algorithm. A reduced complexity approach which employs a single mode approximation of some remote quantities is also considered. Via numerical simulations, we verify that the proposed algorithms outperform certain particle-filtering-based algorithms with comparable communication loads.

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