대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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802.16e 시스템에서 동기화를 위하여 hybrid detection을 이용한 Initial ranging detection 향상과 time offset 계산

Initial Ranging and Detection Enhacement and Time Offset Calculation for Synchronization in 802.16e Systems by Hybrid Detection Method

  • 우스만아프잘 (서울 한양대학교 전자통신컴퓨터 공학과) ;
  • 박종민 (서울 한양대학교 전자통신컴퓨터 공학과) ;
  • 조성호 (서울 한양대학교 전자통신컴퓨터 공학과)
  • Afzal, M Usman (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Park, Jong-Min (Department of Electronics and Computer Engineering, Hanyang University) ;
  • Cho, Sung-Ho (Department of Electronics and Computer Engineering, Hanyang University)
  • 발행 : 2008.04.25
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초록

Initial Ranging Detection and Synchronization is suggested for IEEE 802.16e OFDMA Systems. However ranging is vulnerable to the channel selectivity and other user's interference at low SNR. This paper presents enhanced ranging scheme that improves ranging detection process using the combine multiple FFT blocks and cope with channel selectivity and other user's interference at low SNR. Based on the ranging detection timing offset is calculated for synchronization.

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