Utilization of blind source separation algorithms for MIMO linear precoding

Authors:
Paula Maria Castro;Héctor J. Pérez-Iglesias;Adriana Dapena;Luis Castedo
Affiliations:
Departamento de Electrónica e Sistemas, Universidade da Coruña, A Coruña, Spain;Departamento de Electrónica e Sistemas, Universidade da Coruña, A Coruña, Spain;Departamento de Electrónica e Sistemas, Universidade da Coruña, A Coruña, Spain;Departamento de Electrónica e Sistemas, Universidade da Coruña, A Coruña, Spain
Venue:
ICA'06 Proceedings of the 6th international conference on Independent Component Analysis and Blind Signal Separation
Year:
2006

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Abstract

In this paper we investigate the application of Blind Source Separation (BSS) algorithms for the decoding of linearly precoded MIMO communication systems and for the design of limited feedback channels that send the Channel Status Information (CSI) from the receiver to the transmitter. The advantage of using BSS is that the MIMO channel can be continuously tracked without the need of pilot symbols. CSI is only sent through the feedback channel when the BSS algorithm indicates the presence of a strong channel variation.