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Performance Characteristics of a Symbol Timing Detection by Superposed Difference Method for OFDM  

Joo, Chang-Bok (Dept. of Electronic Engeering, Kyungnam Univ)
Park, Dong-Ho (Dept. of Electronic Engeering, Kyungnam Univ)
Publication Information
Abstract
In this paper, we introduce the performance of improved symbol timing detection by the superposed difference type symbol timing detection method in the OFDM system. Also, we represent the maximum detection probability of symbol synchronization timing at each received delay signal in multipath channel delay profile in the correlation and difference type symbol timing detection methods. The computer simulation results show that the correlation symbol timing detection method have maximum detection probability at the lead of the nth received delay signal of highest amplitude, but the difference type symbol timing detection method always have maximum detection probability at the lead of the first received delay signal in the channel delay spread of $70nsec{\sim}217nsec$. The simulation results indicate the possibility of the perfect detection of OFDM symbol synchronization timing and it fit well with the results of improved S/N to the eb/n0 and the performance of symbol timing detection of the proposed method.
Keywords
OFDM; symbol timing detection methods; maximum detection probability; multipath delay profile;
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Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 T. S. Rappaport, 'Wirless Communications-Principles and Practice', 2nd edition, Prentice Hall PTR, 2002
2 주창복, 박동호 '멀티패스 지연프로필의 각 수신지 연파의 선두에서 OFDM 신호의 심벌 동기 타이밍으로의 검출확률' 대한전자공학회 논문지 Vol.44 No.2 this issue
3 주창복, 박남천 '차분방법에 의한 OFDM 심벌 동기 검출방식,' 대한전자공학회논문지 vol 43TC. No2, pp56-65, 2006   과학기술학회마을
4 K. Takahashi and T. Saba, 'A novel symbol synchronization algorithm with reduced influence of ISI for OFDM systems,' in Proc. IEEE Globecom, vol.1, pp524-528, 2001   DOI
5 R. V. Nee and R. Prasad, 'OFDM for wireless multi-media communications', Artech House, 2000
6 조용수, '무선멀티미디어 통신을 위한 OFDM기초' 대영사(2000)
7 H. Kobayashi, K. Mori and T. Nagaosa, 'Proposal of symbol timing and carrier frequency synchronization methods for bust mode OFDM signal.' IEICE Trans. Commun., vol.E-86-B, No.1, pp238-246, Jan.2003
8 T. Onizawa, M. Mizoguchi, M. Morikura and T. Tanaka, 'A fast synchronization scheme of OFDM signals for high-rate wireless LAN.' IEICE Trans. Commun., vol.E-82-B, No.2, pp455-463, Feb.1999
9 T. M. Schmidl and D. C. Cox, 'Robust frequency acquisition and timing synchronization for OFDM.' IEEE Trans. Commun., vol.45, No.12, pp1613-1621, Dec.1997   DOI   ScienceOn
10 김재석, 조용수, 조중휘 공저, '이동통신용 모뎀의 VLSI설계.' 2장, 대영사, 2001
11 M. Engels, 'Wireless OFDM systems.' Kluwer Academic Pub. 2002