Adaptive blind timing recovery methods for MSE optimization

This article presents a non-data-aided adaptive symbol timing offset correction algorithm to enhance the equalization performance in the presence of long delay spread multipath channel. The optimal timing phase offset in the presence of multipath channels is the one jointly optimized with the receiv...

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Veröffentlicht in:EURASIP journal on advances in signal processing Jg. 2012; H. 1; S. 1 - 10
1. Verfasser: Chung, Wonzoo
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Cham Springer International Publishing 01.01.2012
Springer Nature B.V
Schlagworte:
Algorithms
Blinds
Channels
Engineering
Equalizers
Offsets
Optimization
Quantum Information Technology
Recovery
Signal,Image and Speech Processing
Spintronics
Time measurements
Timing Phase
Decision Feedback Equalizer
Mean Square Error Performance
Mean Square Error
Multipath Channel
ISSN:1687-6180, 1687-6172, 1687-6180
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Zusammenfassung:This article presents a non-data-aided adaptive symbol timing offset correction algorithm to enhance the equalization performance in the presence of long delay spread multipath channel. The optimal timing phase offset in the presence of multipath channels is the one jointly optimized with the receiver equalizer. The jointly optimized timing phase offset with a given fixed length equalizer should produce a discrete time channel response for which the equalizer achieves the minimum mean squared error among other discrete time channel responses sampled by different timing phases. We propose a blind adaptive baseband timing recovery algorithm producing a timing offset close to the jointly optimal timing phase compared to other existing non-data-aided timing recovery methods. The proposed algorithm operates independently from the equalizer with the same computational complexity as the widely used Gardner timing recovery algorithm. Simulation results show that the proposed timing recovery method can result in considerable enhancement of equalization performances.
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ISSN:1687-6180
1687-6172
1687-6180
DOI:10.1186/1687-6180-2012-9