Proposal of Symbol Timing and Carrier Frequency Synchronization Methods for Burst Mode OFDM Signal

Hideo KOBAYASHI  Kazuo MORI  Tomotaka NAGAOSA  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.1   pp.238-246
Publication Date: 2003/01/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
wireless LAN,  burst mode,  OFDM,  symbol timing,  carrier frequency-offset,  

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This paper proposes a novel synchronization method of jointly estimating symbol frame timing and carrier frequency-offset for Orthogonal Frequency Division Multiplexing (OFDM) signal operating in the burst mode which is usually employed in the wireless LAN communications systems. The proposed method enables a fast and accurate synchronization for the burst mode OFDM signal even under the presence of large frequency-offset, very low C/N and frequency selective fading environments by using only two preamble symbols inserted at the start of every burst frame. This paper presents the various computer simulation results to verify the performance of proposed synchronization methods both for symbol timing and carrier frequency.