A robust metric for coarse fame and carrier synchronization of OFDM systems Conference Paper uri icon

abstract

  • This paper proposes a fast and reduced complexity frame and carrier acquisition scheme for OFDM systems which assume either a continuous or a burst mode operation in additive white Gaussian noise (AWGN) and frequency-selective channels. By exploiting the repetitive structure of a training symbol, a robust frame synchronizer is obtained and shown to resume to finding the peak of a certain correlation metric that is obtained by invoking Maximum Likelihood principles. A new carrier estimator that can correct frequency offsets up to two subcarrier spacings is also proposed and achieves the lowest mean-square error among the existing estimators that exploit a similar structured signaling set-up. The efficiency of the proposed synchronization algorithms is illustrated by both theoretical performance analysis and computer simulations.

name of conference

  • Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.

published proceedings

  • THIRTY-SIXTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS - CONFERENCE RECORD, VOLS 1 AND 2, CONFERENCE RECORD

author list (cited authors)

  • Shi, K., & Serpedin, E.

citation count

  • 1

complete list of authors

  • Shi, K||Serpedin, E

publication date

  • January 2002