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Distributed parafac based DS-CDMA blind receiver for wireless sensor networks

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2 Author(s)
A. Y. Kibangou ; GIPSA-Lab/UJF/CNRS, 961 Rue de la Houille Blanche, B.P. 46, F-38402 Grenoble, France ; A. L. F. de Almeida

In this paper, we consider a collaborative scheme in wireless sensor networks where the multiple access protocol is a DS-CDMA one. When the receiver is equipped with an antenna array, it has been shown that efficient blind receivers can be derived using the PARAFAC tensor model. In general, the parameters of the PARAFAC model are fitted using an alternating least squares algorithm. Herein, we consider the case where each receiver has a single antenna. Therefore, by allowing collaboration in a predefined neighborhood, we derive a distributed alternating least squares algorithm including some average consensus steps.

Published in:

Signal Processing Advances in Wireless Communications (SPAWC), 2010 IEEE Eleventh International Workshop on

Date of Conference:

20-23 June 2010