Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Frequency Offset Correction Scheme for an OFDM-Based Mobile Communication System

OFDM 통신 시스템에서의 주파수 오차 보상 방안

  • Kim, Sung-Won (Department of Radio Science and Engineering, Kwangwoon University) ;
  • Kim, Jin-Young (Department of Radio Science and Engineering, Kwangwoon University)
  • Published : 2006.06.21
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Abstract

Frame synchronization is an critical factor for an effective operation of OFDM (orthogonal frequency division multiplexing) based communication systems. In this paper, we present and analyze an efficient frame synchronization method based on m-sequence for OFDM-based mobile multimedia communication systems. The cyclic extension preceding OFDM frames is of decisive importance for this method. The m-sequence is added directly to cyclic extension signal in the time domain. By utilizing the autocorrelation characteristics of m-sequence, efficient frame synchronization can be achieved. And we also consider frequency offset estimation simultaneously. The proposed frame synchronization method can be applied to the OFDM-based mobile multimedia communication systems.

Keywords