| Autor: |
Chris R. Johnson, T.J. Endres, R.A. Casas, Z. Reznic, W.E. Meyer, H.J. Lee, J.P. LeBlanc, E. Tai |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers. |
| Popis: |
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 . Upprättat; 1995; Bibliografisk uppgift: Se artikeln för övriga 7 medförfattare; 20070109 (ysko) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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