Symbol time offset estimation in coherent OFDM systems
Author
Summary, in English
This paper presents a symbol time offset estimator for coherent OFDM systems. This estimator exploits both the redundancy in the cyclic prefix and the pilot symbols used for channel estimation. The estimator is robust against frequency offsets and is suitable for use in dispersive channels. We base the estimator on the ML estimator for the AWGN channel. Simulations of an example system indicate a system performance as close as 0.3 dB to a perfectly synchronized system. Compared to an estimator not using pilots, our estimator's performance could allow a shorter cyclic prefix and thus a more spectrally efficient system
Publishing year
1999
Language
English
Publication/Series
[Host publication title missing]
Full text
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Document type
Conference paper
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
International Conference on Communications
Conference date
1999-06-06 - 1999-06-10
Conference place
Vancouver, Canada
Status
Published