Title
Comments on "A Technique for Orthogonal Frequency Division Multiplexing Frequency Offset Correction".
Abstract
This comment corrects a few errors found in the derivation of the maximum likelihood estimate of differential phase in the paper, "A Technique for Orthogonal Frequency Division Multiplexing Frequency Offset Correction." We show that the problem of differential phase estimation can be considered as an estimation problem in the presence of nuisance parameters, which does not satisfy strong ancillarity. The approach in the above paper to solve this problem can be understood as conditioning for elimination of nuisance parameters but without taking proper steps. After making corrections on the proof, it is demonstrated that the estimator in the above paper is inherently suboptimal and thus prior knowledge on the nuisance parameters, if available, can be utilized to further improve the estimation performance.
Year
DOI
Venue
2013
10.1109/TCOMM.2013.022713.120004
IEEE Transactions on Communications
Keywords
Field
DocType
Vectors,Maximum likelihood estimation,Frequency estimation,Joints,Frequency division multiplexing,Jacobian matrices
Computer science,Differential phase,Control theory,Frequency offset,Frequency-division multiplexing,Maximum likelihood,Electronic engineering,Parametric statistics,Orthogonal frequency-division multiplexing,Estimator
Journal
Volume
Issue
ISSN
61
5
0090-6778
Citations 
PageRank 
References 
2
0.35
1
Authors
4
Name
Order
Citations
PageRank
Dongwoon Bai116415.97
Wooseok Nam235417.11
Jungwon Lee389095.15
Inyup Kang430432.39