NDLI: Convergence analysis of blind equalizer in a cosine modulated filter bank-based multicarrier communication system

Content Provider	IEEE Xplore Digital Library
Author	Lin, L. Farhang-Boroujeny, B.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Utah Univ., Salt Lake City, UT, USA (Lin, L.; Farhang-Boroujeny, B.)
Abstract	A recent development in the literature has proposed a cosine modulated filter bank - based multicarrier modulation technique with blind equalization capability. However, convergence studies of the proposed blind equalizer has been carried out through computer simulations only. In this paper, we present a thorough study of the blind equalizer by analyzing its associated cost function in detail. We show that the blind equalizer cost function is characterized by two global minima and two local minima. The analysis shows that although there is a chance that the blind equalizer converges to near one of the local minima, the stochastic nature of the adaptation algorithm will eventually result in a drift of the algorithm and convergence towards one of the global minimum points.
Starting Page	368
Ending Page	372
File Size	345392
Page Count	5
File Format	PDF
ISBN	078037858X
DOI	10.1109/SPAWC.2003.1318984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-15
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Convergence Blind equalizers Filter bank Computer simulation Cost function OFDM modulation Intersymbol interference Cities and towns Terminology Algorithm design and analysis
Content Type	Text
Resource Type	Article

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