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Linkage between Digital Down Converter System and Spectrum Sensing Method  

Hong, Moo-Hyun (충북대학교 전자정보대학 전파통신공학과)
Moon, Ki-Tak (충북대학교 전자정보대학 전파통신공학과)
Kim, Ju-Seok (충북대학교 정보통신공학과)
Kim, Kyung-Seok (충북대학교 정보통신공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.3, 2010 , pp. 43-50 More about this Journal
Abstract
DDC(Digital Down Converter) is a conversion technology to decimate to a lower sampling rate and DDC for the future development of communications technology has the necessary skills. So, it has been recognized in the wireless and the SDR(Software Defined Radio) system as essential components. In addition, research is underway on spectrum sensing for efficient communications environment due to the shortage of frequency resources. In this paper, the DDC systems were analyzed for CIC(Cascaded Integrator Comb) Filter, WDF(Wave Digital Filter), SRC(Sample Rate Conversion) each module. Moreover, we proposed a linkage effectively between DDC system and Spectrum Sensing for improve the efficiency of use of frequency by computer simulations. The simulation results of the DDC system was applied to the spectrum sensing capabilities. Also, performance and complexity of the results were derived and proposed system was the result of the check.
Keywords
SDR; Multirate DSP; DDC; Cognitive Radio;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 이원철, "멀티모드용 SDR 기반 디지털 IF 기술", 한국통신학회지(정보통신) 제 19권 11호, 2002. 11   과학기술학회마을
2 Feiteng Luo,Weidong Chen, "An Economical TDM Design of Multichannel Digital Down Converter", Signal Processing 2008, ICSP 2008, 9th International Conference on 26-29 Oct. 2008
3 이현소, 김경석, "IEEE 802.22 WRAN 기반 스펙트럼 센싱 모듈 구현", 한국콘텐츠학회논문지 제9권 제3호, 2009.3   과학기술학회마을
4 E2R II White Paper, "RF Transceiver Architecture for Cognitive Radio User Equipment ", End to End Reconfigurability II White Paper, 2007.06
5 Dolecek G.J.,Carmona J.D, "A New Cascaded Modified CIC-Cosine Decimation Filter", Circuits and Systems 2005, ISCAS 2005, IEEE International Symposium on, 23-26 May 2005
6 김상민 외4, "디지털 영역에서 파이프라인 가능한 제자형 웨이브 디지털 필터구조의 유도", 대한 통신학회 논문지 제23권 9호, 1998.09
7 S.A. Samada,*A.Hussaina,D.Isab,"Wave digital filters with minimum multiplier for discrete Hilbert transformer realization" ScienceDirect, Sinal Processing 86(2006)3761-3768, 2006.04   DOI   ScienceOn
8 John G.Proakis, Dimitris G. Manolakis, " DIGITAL SIGNAL PROCESSING-Principles, Algorithms, and Applications",Pearson Prentice hall, 2007
9 P.D. Welch, "The Use of Fast Fourier Transform for the Estimation of Power Spectra: A Method Based on Time Averaging Over Short, Modified Periodograms", IEEE Transactions on Audio Electroacoustics, Volume AU-15 (June 1967), pages 70-73.
10 Tianqi Wang, "Sample Rate Conversion Technology in Software Defined Radio",IEEE CCECE/CCGEI, Ottawa, 2006.05