Title

Novel Conjugate-Gradient Based Complex Adaptive Ica For Diversity Qpsk Receivers In Time-Varying Channel Applications

Keywords

Adaptive Independent Component Analysis; Conjugate Gradient; Diversity receivers; Kurtosis; Time-varying channels

Abstract

In this paper, a novel Conjugate-Gradient based Complex Independent Component Analysis algorithm (CBC-ICA) for processing complex signals is presented, which employs independent conjugate-gradient based search directions, rather than the gradient directions, for the real and imaginary components of the weight vector. The proposed technique is used to perform interference suppression for diversity QPSK receivers in time-varying channels. In contrast to the well known Complex FastICA algorithm, the CBC-ICA demonstrates fast convergence in dynamic environments, while maintaining satisfactory Symbol Error Rate (SER) performance. In addition, the performance of the CBC-ICA is preserved for large processing block sizes. © 2008 IEEE.

Publication Date

9-9-2008

Publication Title

2008 IEEE Radio and Wireless Symposium, RWS

Number of Pages

527-530

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/RWS.2008.4463545

Socpus ID

50949114006 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/50949114006

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