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An efficient Frequency and Symbol Synchronization Scheme for DVB-T System  

Lee, Hyung-Wook (성균관대학교 전기전자 및 컴퓨터공학부)
Kim, Ki-Yun (성균관대학교 전기전자 및 컴퓨터공학부)
Choi, Hyung-Jin (성균관대학교 전기전자 및 컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.2C, 2002 , pp. 170-183 More about this Journal
Abstract
This paper proposes an efficient frequency and symbol synchronization structure which could solve problems of the conventional methods to implement DVB-T receive modem which adopted OFDM transmission method. The main considerations of frequency synchronization algorithms are that the frequency tracking performance is not stable enough, and lots of symbols are required, especially when the decimal part of normalized frequency offset (which original frequency offset is divided by the subcarrier spacing) is around $\pm$0.5 to solve these problems, we propose an efficient frequency offset is divided by the subcarrier spacing) is around $\pm$0.5 by using the average of coarse synchronization over several symbol. Also, we suggest a new symbol synchronization structure which is easy to implement without performance degradation in multipath fading channel with only coarse symbol synchronization by making window offset to the range of guard interval in contrast to the conventional structure of dividing symbol synchronization in fine and coarse mode during synchronization. By extensive simulation, we have shown the superiority of the proposed schemes.
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1 J. A. C. Bingham, 'Multicamer modulation for data transmission: an idea whose time has come,' IEEE Communication Mag., vol. 28, pp. 17-25, Mar. 1990
2 M. Alard and R. Lassalle, 'Principles of modulation and channel coding for digital broadcasting for mobile receivers, 'EBU Tech. Review, no. 24, pp. 3-25, Aug. 1987
3 J. Beek, M. Sandell, and P. Borjesson, 'On synchronization in OFDM systems using the cyclic prefix,' Proc. of RVK(Radiovetenskaplig Konferens), pp. 663-667, 1996
4 ETSI ETS 300 744, Dieital Broadcasting Systems for Tetevision, Sound and Data Services; Framing Structure, Channel Coding and Modutation for Digital terrestrial television, 1996
5 B. Le Floch, R. Halbert-Lassalle and D. Castelain, 'Digital sound broadcasting to mobile receivers,' IEEE Trans. on Consumer Etectro-nics, vol. 35, no. 3, PP. 493-503, Aug. 1989   DOI   ScienceOn
6 F. Daffara and O. Adami, 'A new frequency detector for orthogonal multicarrier transmission techniques,' Proc. of VTC, PP. 804-809, 1995
7 T. Couasnon, R. Monnier and J. Rault, 'OFDM for digital tv broadcasting,' SignalProcessing, Vol. 39, pp.1-32, Elsevier, 1994
8 Dong Kyu Kim, Sang Hyun Do, Hong Bae Cho, Hyung Jin Choi and Ki Bum Kim, 'A new joint algorithm of symbol timing recovery and sampling clock adjustment for OFDM systems,' IEEE Trans. on Consumer EIectronics, vol. 44, no. 3, pp. 1142-1149,Aug. 1998   DOI   ScienceOn
9 도상현, 김동규, 이현규, 최형진, 'OFDM 시스템의 FFT 윈도우 위치복원에 관한 연구,' 제7회 통신정보 합동학술대회(JCCI), pp. 223-227,1997년 4월
10 ETSI, 'Digital video broadcasting(DVB); Frammg structure, channel coding and modulation for digital terrestrial television,' ETS 300 744, Aug. 2000
11 M. Speth, D. Daecke, and H. Mayer, 'Minimum overhead burst synchronization for OFDM based broadband transmission,' Proc. of GL0BEC0M'98, pp. 3227-3232, 1998
12 F. Classen and H. Meyr, 'Frequency synchronization algorithms for ofdm systems suitable for communication over frequency selective fading channels,' Proc. of VTC, pp.1655-1659, 1994
13 Hikmet Sari, Georges Karam and Isabelle Jeanclaude, 'Transmission techniques for digital terrestrial TV broadcasting,' IEE Communication Mag., pp. 100-109, Feb. 1995
14 R. W. Chang, 'Synthesis of band-limited orthogonal signals for multichannel data transmission,' Bett System Technicat Journal, vol. 45, pp. 1775-1796, Dec. 1966   DOI
15 William Y. Zou and Yiyan Wu, 'COFDM: An Overwiew,' IEEE Trans. on Broadcasting, vol. 41, no. 1, pp. 1-8, Mar. 1995   DOI   ScienceOn
16 J. Beek, M. Sandell, M. Isaksson and P. Borjesson, 'Low-complex frame Synchroniza-tion in OFDM systems,' Proc. of ICUPC'95,pp. 982-986, 1995
17 H. Nogami and T. Nagashima, 'A frequency and timing period acquisition technique for OFDM systems,' Proc. of PIMRC, pp. 1010-1015. 1995
18 A. Pallin and J. Rinne, 'Enhanced symbolsynchronization method for OFDM system in SFN channels,' Proc. of GL0BEC0M'98, pp. 2777-2782, 1998
19 Pierre Combellas, Chiistophe Del Toso, et al., 'A receiver architecture conforming to the OFDM based digital video broadcasting standard for terrestrial transmission (DVB-T),'Proc. of ICC'99, pp. 780-785, 1999
20 M. Saito, S. Moriyama and O. Yamada, 'A digital modulation method for terrestrial digital TV broadcasting using trellis coded ofdm and its performance,' Proc. of GLOBECOM'92, pp. 1694-1698, 1992
21 B. Le Floch, et al., 'Digital sound broad-casting to mobile receiver,' IEEE Trans. on Consumer EIectronics, vol. 35, no.3, pp. 493-503, Aug. 1989   DOI   ScienceOn