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The local minima of fractionally-spaced CMA blind equalizer costfunction in the presence of channel noise
Cornell University, Ithaca.
1998 (English)In: Proceedings of the 1998 IEEE International Conference on Acoustics, Speech, and Signal Processing: May, 12 - 15, 1998, Washington State Convention and Trade Center, Seattle, Washington, USA, Piscataway, NJ: IEEE Communications Society, 1998, 3345-3348 p.Conference paper (Refereed)
Abstract [en]

We study the local minima relocation of the fractionally spaced constant modulus algorithm (FSE-CMA) cost function in the presence of noise. Local minima move in a particular direction as the noise power increases and their number may be eventually reduced. In such cases the performance of FSE-CMA may fail to adequately reduce intersymbol interference (ISI), but achieve an approximated MMSE by reducing its equalizer noise gain under certain constraints. We analyze the mechanism of relocation of the FSE-CMA cost function local minima in terms of the auto-correlation matrix of the sub-channel convolution matrix and its eigenvectors

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 1998. 3345-3348 p.
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-37138DOI: 10.1109/ICASSP.1998.679581Local ID: b0f3f110-9e79-11db-8975-000ea68e967bISBN: 0-7803-4428-6OAI: diva2:1010636
IEEE International Conference on Acoustics, Speech, and Signal Processing : 12/05/1998 - 15/05/1998
Uppr├Ąttat; 1998; 20070107 (ysko)Available from: 2016-10-03 Created: 2016-10-03

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