Joint 2D-pilot-symbol-assisted-modulation and decision-directed frequency synchronization schemes for coherent OFDM

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

A new frequency offset tracking approach for OFDM has been addressed. Two-dimensional pilot-symbol assisted modulation (2D-PSAM) is employed in coherent OFDM for channel estimation and it is based on inserting known symbols spread out through the 2D time-frequency grid. We show that these scattered symbols can also be employed to perform frequency synchronization. Maximum likelihood estimation has been derived for both time and frequency domains. Also, if a decision-guided strategy is used jointly with the 2D-PSAM signalling, an improvement in performance can be attained

Detaljer

Författare
  • Maria Julia Fernández-Getino Garcia
  • Ove Edfors
  • José M. Páez-Borrallo
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Elektroteknik och elektronik
Originalspråkengelska
Titel på värdpublikationProc. IEEE Acoustics, Speech, and Signal Processing Conference
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor2961-2964
Antal sidor4
Volym5
ISBN (tryckt)0-7803-6293-4
StatusPublished - 2000
PublikationskategoriForskning
Peer review utfördJa
EvenemangIEEE Acoustics, Speech, and Signal Processing Conference - Istanbul, Turkiet
Varaktighet: 2000 jun 52000 jun 9

Publikationsserier

Namn
Volym5

Konferens

KonferensIEEE Acoustics, Speech, and Signal Processing Conference
LandTurkiet
OrtIstanbul
Period2000/06/052000/06/09