ICA-based semi-blind spatial equalization for MIMO systems

Zhiguo Ding, T. Ratnarajah, Colin Cowan, Yu Gong

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Blind equalization is one challenging problem for multiple-input multiple-output systems, to which independent component analysis (ICA) is applicable. However direct application of ICA could yield low convergence speed and poor performance. In this paper we propose two semi-blind ICA-based algorithms, which incorporate information both from the training and unknown sequences. During each iterative/adaptive step, the training information is utilized to supervise the unconstrained blind ICA-based measure. Simulation results show that the two proposed semi-blind approaches can outperform both the training-based and conventional ICA method. Furthermore we report a special case of MIMO systems which does not require the algorithm of source separation, whose proof is also provided.

Original languageBritish English
JournalEuropean Signal Processing Conference
StatePublished - 2006
Event14th European Signal Processing Conference, EUSIPCO 2006 - Florence, Italy
Duration: 4 Sep 20068 Sep 2006

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