Performance analysis of channel estimation for OFDM systems with residual timing offset

The authors present an analysis of the effect of timing offset on channel estimation for comb-type pilot-aided orthogonal frequency division multiplexing (OFDM) systems. Residual timing offset does not negatively affect the channel estimation of the pilot subcarrier, but does corrupt the channel inf...

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Bibliographic Details
Published inIEEE transactions on wireless communications Vol. 5; no. 7; pp. 1622 - 1625
Main Authors PARK, Jeongho, KIM, Jihyung, PARK, Myonghee, KO, Kyunbyoung, KANG, Changeon, HONG, Daesik
Format Journal Article
LanguageEnglish
Published Piscataway, NJ IEEE 01.07.2006
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Applied sciences
Channel estimation
Channels
Degradation
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Frequency estimation
Frequency synchronization
Information technology
Information, signal and communications theory
Interpolation
Mean square error methods
OFDM
Offsets
Orthogonal Frequency Division Multiplexing
Performance analysis
Pilots
Signal and communications theory
Signal, noise
Synchronization
Telecommunications and information theory
Time measurements
Timing
Wireless communication
Interpolation
comb-type pilot arrangement
timing offset
Channel estimation
Wireless telecommunication
Orthogonal frequency division multiplexing
Performance analysis
Mean square error
Orthogonal frequency division multiplexing (OFDM)
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Summary:The authors present an analysis of the effect of timing offset on channel estimation for comb-type pilot-aided orthogonal frequency division multiplexing (OFDM) systems. Residual timing offset does not negatively affect the channel estimation of the pilot subcarrier, but does corrupt the channel information obtained via interpolation. This paper provides the mean square error (MSE) channel estimation performance when a linear interpolation technique is used in a comb-type pilot-aided OFDM system. Analysis shows that the performance degradation of the channel estimator due to imperfect frame synchronization is dependent on the frequency correlation of the channels and the amount of timing offset
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2006.1673071