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Joint Low-Complexity Blind Equalization, Carrier Recovery, and Timing Recovery with Application to Cable Modem Transmission

Cheng-I HWANG, David W. LIN

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Summary :

We present a receiver structure with joint blind equalization, carrier recovery, and timing recovery. The blind equalizer employs a decomposition transversal filtering technique which can reduce the complexity of convolution to about a half. We analyze the performance surface of the equalizer cost function and show that the global minima correspond to perfect equalization. We also derive proper initial tap settings of the equalizer for convergence to the global minima. We describe the timing recovery and the carrier recovery methods employed. And we describe a startup sequence to bring the receiver into full operation. The adaptation algorithms for equalization, carrier recovery, and timing recovery are relatively independent, resulting in good operational stability of the overall receiver. Some simulation results for cable-modem type of transmission are presented.

Publication
IEICE TRANSACTIONS on Communications Vol.E82-B No.1 pp.120-128
Publication Date
1999/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Communication Systems and Transmission Equipment

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