A robust metric for coarse frame and carrier synchronization of OFDM systems

K. Shi, E. Serpedin

Research output: Contribution to journalConference article

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1827-1831
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume2
Publication statusPublished - 1 Dec 2002
EventThe Thirty-Sixth Asilomar Conference on Signals Systems and Computers - Pacific Groove, CA, United States
Duration: 3 Nov 20026 Nov 2002

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ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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