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http://dx.doi.org/10.5909/JBE.2013.18.6.927

Implementation of SNR Estimator for ISDB-T Systems  

Kim, Seongihl (Department of Electronic Engineering, Kwangwoon University)
Sohn, Chae-Bong (Department of Electronics and Communications Engineering, Kwangwoon University)
Publication Information
Journal of Broadcast Engineering / v.18, no.6, 2013 , pp. 927-934 More about this Journal
Abstract
This paper aims to realize a Signal to Noise Ratio Estimator which constitutes a critical index of the broadcasting system in OFDM system with a synchronized type based on ISDB-T system. Of the elements which are comprising OFDM segments of ISDB-T system using the MSE algorithm suitable for ASIC design owing to its low complexity among a diverse SNR estimation methods, SNR estimation method using the broadcasting information data and the SNR estimation method using scattered pilot signal were realized by RTL. These two methods were compared in terms of their performance through simulation test not only in the AWGN channel which is an ideal channel, but also in SFN channel and frequency selective fading channel, which are distorted channels. Complexity of two methods were also compared through RTL realization. As a result of this comparison analysis, it was concluded that the SNR estimation method using scattered pilot signal shows more excellent performance and easiness in realization.
Keywords
ISDB-T; MSE; AWGN; SFN; Selective Frequency Fading; SNR Estimator;
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  • Reference
1 Xiaodong X., Ya Jing and Xiaohu Y. "Subspace-based Noise variance and SNR estimation for OFDM Systems", IEEE Wireless Communications and Networking Conference, 2005.
2 L. Hanzo, C. Wong and M. S. Yee, "Adaptive Wireless Transceivers : Turbo-coded, Turbo-Equalized and Space-Time Coded TDMA, CDMA, and OFDM Systems", New Work: John Wiley &Sons, 1st ed., 2002.
3 T. Keller and L. Hanzo, "Adaptive orthogonal frequency division multiplexing schemes", in proceedings of ACTS Mobile Communications Summit, June 1998, pp. 794-799.
4 T. Keller and L. Hanzo, "Adaptive Multicarrier Modulation : A convenient framework for time-frequency processing in wireless communications", in proceeding of IEEE, vol. 88, May 2000, pp. 611-640.   DOI   ScienceOn
5 R. S. manzoor, W. Majavu and V. Jeoti, " Front-End Estimation of Noise Power and SNR in OFDM Systems", International Conference on Intelligent and Advanced Systems, 2007.
6 G. Ren, Y. Chang and H. Zhang, "SNR estimation algorithm based on the preamble for wireless OFDM systems", Science in China Series F: Information Sciences, 2008, vol. 51, pp. 965-974.   DOI   ScienceOn
7 D. Pauluzzi and N. Beaulieu, "A comparison of SNR estimation techniques for the AWGN channel", IEEE Trans. Commu., 2000, vol. 48. pp 1681-1691.   DOI   ScienceOn
8 S. Reddy and H. Arslan. " Noise power and SNR Estimation for OFDM Based Wireless Communication System", IASTED International Conference on Wireless and Optical Communications, 2003.
9 ARIB STD-B31 V1.6, "Transmission system for digital terrestrial television broadcasting", November 2005
10 ARIB STD-B21 V4.6, "Receiver for digital broadcasting", March 2007
11 COST207, "Digital land mobile radio communications(final report)", Commission of the European Communities, Directorate General Telecommunications, Information Industries and Innovation, 1989.