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On fractionally-spaced equalizer design for digital microwave radio channels
1995 (English)In: Conference Record of the Twenty-Ninth Asilomar Conference on Signals, Systems and Computers, IEEE Communications Society, 1995, 290-294 p.Conference paper (Refereed)
Abstract [en]

Advances in blind identification of fractionally-spaced models for digital communication channels and blind fractionally-spaced equalizer adaptation rely on the assumption that the time span chosen for the fractionally-spaced equalizer exceeds that of the channel. This paper considers time-domain design formulas minimizing the mean-squared symbol recovery error achieved by a finite-length FIR fractionally-spaced equalizer with a time span shorter than the channel impulse response time span for white zero-mean QAM sources in the presence of white zero-mean channel noise. For minimum mean-squared error designs the symbol error rates achievable are plotted versus the ratio of the source variance to the channel noise variance (with the channel model power normalized to achieve a received signal of unit variance) for different fractionally-spaced equalizer lengths on 64-QAM for several T/2-spaced channel models derived from experimental data. Our intent is to fuel the ongoing debate about fractionally-spaced equalizer length selection .

Place, publisher, year, edition, pages
IEEE Communications Society, 1995. 290-294 p.
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-29376DOI: 10.1109/ACSSC.1995.540558Local ID: 2d6efeb0-a023-11db-8975-000ea68e967bOAI: diva2:1002600
Asilomar Conference on Signals, Systems and Computers : 30/10/1995 - 02/11/1995
Upprättat; 1995; Bibliografisk uppgift: Se artikeln för övriga 7 medförfattare; 20070109 (ysko)Available from: 2016-09-30 Created: 2016-09-30

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