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 | |
| Publication status | Published - 2005 Mar 1 |
| Externally published | Yes |
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Keywords
- Adaptive blind synchronization
- MMSE timing offset
- Timing offset recovery
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Signal Processing
Cite this
Timing phase offset recovery based on dispersion minimization. / Chung, Wonzoo; Sethares, William A.; Johnson, C. Richard.
In: IEEE Transactions on Signal Processing, Vol. 53, No. 3, 01.03.2005, p. 1097-1109.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Timing phase offset recovery based on dispersion minimization
AU - Chung, Wonzoo
AU - Sethares, William A.
AU - Johnson, C. Richard
PY - 2005/3/1
Y1 - 2005/3/1
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
UR - http://www.scopus.com/inward/record.url?scp=14844366193&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=14844366193&partnerID=8YFLogxK
U2 - 10.1109/TSP.2004.842211
DO - 10.1109/TSP.2004.842211
M3 - Article
AN - SCOPUS:14844366193
VL - 53
SP - 1097
EP - 1109
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
SN - 1053-587X
IS - 3
ER -