Timing phase offset recovery based on dispersion minimization

Wonzoo Chung; William A. Sethares; C. Richard Johnson

doi:10.1109/TSP.2004.842211

Timing phase offset recovery based on dispersion minimization

Wonzoo Chung, William A. Sethares, C. Richard Johnson

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper presents a blind timing phase offset recovery scheme that attempts to optimize the baud spaced equalizer output mean square error (MSE) for a realistic equalizer length that is usually shorter than the ideal length. Among the existing blind timing recovery schemes, few are designed for equalizer output MSE optimization, and none are designed for the realistic case when the equalizer is short. The proposed algorithm (that is based on a cost function that minimizes the dispersion of the received signal) attempts to minimize the MSE of a one-tap equalizer output. It also exhibits good performance for relatively short equalizers. Conditions for the unimodality of the dispersion minimization cost are investigated, and a geometric relationship to the minimum MSE (MMSE) timing offset is shown qualitatively. The detailed MSE performance of the algorithm is investigated for the representing classes of channels by comparing existing blind timing offset estimation schemes.

Original language	English
Pages (from-to)	1097-1109
Number of pages	13
Journal	IEEE Transactions on Signal Processing
Volume	53
Issue number	3
DOIs	https://doi.org/10.1109/TSP.2004.842211
Publication status	Published - 2005 Mar
Externally published	Yes

Bibliographical note

Funding Information:
Manuscript received November 14, 2003; revised February 12, 2004. W. Chung and C. R. Johnson, Jr. were supported in part by the National Science Foundation under Grant ECS-9811297 and NxtWave Communications (now ATI). The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Gregori Vazquez.

Keywords

Adaptive blind synchronization
MMSE timing offset
Timing offset recovery

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering

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10.1109/TSP.2004.842211

Cite this

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title = "Timing phase offset recovery based on dispersion minimization",

abstract = "This paper presents a blind timing phase offset recovery scheme that attempts to optimize the baud spaced equalizer output mean square error (MSE) for a realistic equalizer length that is usually shorter than the ideal length. Among the existing blind timing recovery schemes, few are designed for equalizer output MSE optimization, and none are designed for the realistic case when the equalizer is short. The proposed algorithm (that is based on a cost function that minimizes the dispersion of the received signal) attempts to minimize the MSE of a one-tap equalizer output. It also exhibits good performance for relatively short equalizers. Conditions for the unimodality of the dispersion minimization cost are investigated, and a geometric relationship to the minimum MSE (MMSE) timing offset is shown qualitatively. The detailed MSE performance of the algorithm is investigated for the representing classes of channels by comparing existing blind timing offset estimation schemes.",

keywords = "Adaptive blind synchronization, MMSE timing offset, Timing offset recovery",

author = "Wonzoo Chung and Sethares, {William A.} and Johnson, {C. Richard}",

note = "Funding Information: Manuscript received November 14, 2003; revised February 12, 2004. W. Chung and C. R. Johnson, Jr. were supported in part by the National Science Foundation under Grant ECS-9811297 and NxtWave Communications (now ATI). The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Gregori Vazquez.",

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AU - Sethares, William A.

AU - Johnson, C. Richard

N1 - Funding Information: Manuscript received November 14, 2003; revised February 12, 2004. W. Chung and C. R. Johnson, Jr. were supported in part by the National Science Foundation under Grant ECS-9811297 and NxtWave Communications (now ATI). The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Gregori Vazquez.

PY - 2005/3

Y1 - 2005/3

N2 - This paper presents a blind timing phase offset recovery scheme that attempts to optimize the baud spaced equalizer output mean square error (MSE) for a realistic equalizer length that is usually shorter than the ideal length. Among the existing blind timing recovery schemes, few are designed for equalizer output MSE optimization, and none are designed for the realistic case when the equalizer is short. The proposed algorithm (that is based on a cost function that minimizes the dispersion of the received signal) attempts to minimize the MSE of a one-tap equalizer output. It also exhibits good performance for relatively short equalizers. Conditions for the unimodality of the dispersion minimization cost are investigated, and a geometric relationship to the minimum MSE (MMSE) timing offset is shown qualitatively. The detailed MSE performance of the algorithm is investigated for the representing classes of channels by comparing existing blind timing offset estimation schemes.

AB - This paper presents a blind timing phase offset recovery scheme that attempts to optimize the baud spaced equalizer output mean square error (MSE) for a realistic equalizer length that is usually shorter than the ideal length. Among the existing blind timing recovery schemes, few are designed for equalizer output MSE optimization, and none are designed for the realistic case when the equalizer is short. The proposed algorithm (that is based on a cost function that minimizes the dispersion of the received signal) attempts to minimize the MSE of a one-tap equalizer output. It also exhibits good performance for relatively short equalizers. Conditions for the unimodality of the dispersion minimization cost are investigated, and a geometric relationship to the minimum MSE (MMSE) timing offset is shown qualitatively. The detailed MSE performance of the algorithm is investigated for the representing classes of channels by comparing existing blind timing offset estimation schemes.

KW - Adaptive blind synchronization

KW - MMSE timing offset

KW - Timing offset recovery

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DO - 10.1109/TSP.2004.842211

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JO - IEEE Transactions on Signal Processing

JF - IEEE Transactions on Signal Processing

IS - 3

ER -

Timing phase offset recovery based on dispersion minimization

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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