A novel conjugate gradient based block adaptive ICA algorithm for dynamic environments

Authors:
Thomas T. Yang;Wasfy B. Mikhael
Affiliations:
Electrical and Systems Engineering Department, Embry-Riddle Aeronautical University, Daytona Beach, Florida;Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida
Venue:
ICECS'05 Proceedings of the 4th WSEAS international conference on Electronics, control and signal processing
Year:
2005

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Abstract

This paper presents a novel block adaptive Independent Component Analysis (ICA) algorithm based on the conjugate gradient method. The algorithm is suitable for application in dynamic environments. Simulation results employing the proposed method for interference rejection in wireless receivers are given. It is shown that the new algorithm outperforms the Fast-ICA algorithm under dynamic conditions. Consequently, the proposed algorithm lends itself to practical applications in mobile cellular systems for higher user mobility, handoff, and rapid changing channel conditions.