Meny

Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

Symbol time offset estimation in coherent OFDM systems

Författare:
Publiceringsår: 2002
Språk: Engelska
Sidor: 545-549
Publikation/Tidskrift/Serie: IEEE Transactions on Communications
Volym: 50
Nummer: 4
Dokumenttyp: Artikel
Förlag: IEEE-Inst Electrical Electronics Engineers Inc

Sammanfattning

This paper presents a symbol time offset estimator for coherent orthogonal frequency division multiplexing (OFDM) systems. The estimator exploits both the redundancy in the cyclic prefix and available 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 maximum-likelihood estimator for the additive white Gaussian noise channel. Simulations for an example system indicate a system performance as close as 0.6 dB to a perfectly synchronized system.

Disputation

Nyckelord

  • Technology and Engineering
  • delay estimation
  • communication system
  • multicarrier
  • frequency division multiplexing (OFDM)
  • orthogonal
  • synchronization
  • time estimation

Övriga

Published
Yes
"This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder."
  • ISSN: 0090-6778

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen