ML estimation of time and frequency offset in OFDM systems
Författare
Summary, in English
We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode.
Publiceringsår
1997
Språk
Engelska
Sidor
1800-1805
Publikation/Tidskrift/Serie
IEEE Transactions on Signal Processing
Volym
45
Issue
7
Dokumenttyp
Artikel i tidskrift
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- OFDM systems
- frequency estimation
- frequency division multiplexing
- multiplexing
- maximum likelihood estimation
- synchronisation
- carrier-frequency offset estimator
- acquisition mode
- cyclic prefix
- tracking
- orthogonal frequency-division
- tracking mode
- symbol-time estimator
- maximum likelihood
- redundant information
- time offset
Status
Published
Forskningsgrupp
- Broadband Communication
ISBN/ISSN/Övrigt
- ISSN: 1053-587X