Journal of Satellite, Information and Communications (한국위성정보통신학회논문지)

Korea Society of Satellite Technology (한국위성정보통신학회)
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Performance of an Adaptive D2D Channel Modeling Scheme for Satellite Wireless Package Systems

이동단말용 위성 통신 무선 패키지 시스템을 위한 적응적 D2D 채널 모델링 기법의 성능

  • 황유민 (광운대학교 전파공학과 유비쿼터스 통신 연구실) ;
  • 차재상 (서울과학기술대학교 전자IT미디어공학과) ;
  • 김진영 (광운대학교 전파공학과 유비쿼터스 통신 연구실)
  • Received : 2015.01.10
  • Accepted : 2015.02.23
  • Published : 2015.03.31
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Abstract

In this paper, we introduce satellite communication for new wireless disaster network to be built on the basis of amateur radio HR (HAM Radio) as a wireless package system, and channel environments of a D2D terminal that tries to connect and communicate with the wireless disaster network. In this disaster network, we propose a LOS component ratio based adaptive channel modeling approach to accurately estimate a variety of channels whose the D2D terminal could have and smoothly transfer to the level of multimedia data based on the Okumura-Hata channel model. As a result of computer simulation, performance of the proposed method was compared with the that of Okumura-Hata model of open area and urban area model and we were confirmed that there is a gain of BER performance from the results of the computer simulation.

본 논문에서는 아마추어 무선 HR(HAM Radio)을 기반으로 구축되는 새로운 무선 재난통신망인 이동단말용 위성 통신 무선패키지 시스템과 이 재난통신망에 접속하려는 D2D 단말의 채널 환경에 대해 소개한다. 이러한 재난통신망과 D2D 단말이 서로 재난통신할 때 재난정보를 멀티미디어 데이터급 수준으로 원활하게 전송 및 통신하기 위해서는 D2D 단말이 처한 다양한 재난상황에 적응적으로 채널 값을 추정하는 채널 모델링 연구가 요구된다. 따라서 본 논문에서 LOS component ratio 기반의 적응적 채널 모델링 기법을 제안하고, 제안한 기법의 성능을 Okumura-Hata model의 Open area 및 Urban area model과 비교하였다. 컴퓨터 시뮬레이션 결과 거리 대비 BER 성능 및 SNR 대비 BER 성능에서 이득이 있음을 확인하였다.

Keywords

References

  1. S. M. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE Journal on Select. Areas Comms., vol. 45, pp. 1451-1458, 1998.
  2. A. Goldsmith. "Wireless Communication", New York: Cambridge University Press, (2005).
  3. P. Gupta and P. R. Kumar, "The capacity of wireless networks," IEEE Transactions on Information Theory, vol. 46, no. 2, pp. 388-404, 2000. https://doi.org/10.1109/18.825799
  4. 3GPP TS 36.201 v11.0.0, "LTE phy sical layer; general description,"2012.
  5. Zhang Y P, Hwang Y, Kouyoumjian R G, "Ray optical prediction of radio wave propagation characteristics in tunnel environments "- part 2: analysis and measurements, IEEE Transactions on AP, Vol.46, pp.1337-1345, Sep. 1998.
  6. A. Chehri, P. Fortier, and P.-M. Tardif, "Measurements and Modeling of Line-of-Sight UWB Channel in Underground Mines," Proceedings of the Global Telecommunications Conference, pp.1-5, Nov. 2006.
  7. Mathieu Boutin, Ahmed Benzakour, Charles L. Despins, "Radio Wave Characterization and Modeling in Underground Mine Tunnels," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 2, pp.540-549, Feb. 2008. https://doi.org/10.1109/TAP.2007.913144
  8. A. H. Tewfik and S. Srirangarajan, "Localization in non line-of-sight environments for wireless sensor networks," in 2nd European Workshop on Wireless Sensor Networks, Istanbul, Jan. - Feb. 2005, pp. 410-414.
  9. W. Chung and D. Ha, "An accurate ultra wideband (UWB) ranging for precision asset location," Proceedings of the International Conference on Ultra Wideband Systems and Technologies, Reston, Virgina, Nov. 2003 pp. 383-393.
  10. J.-Y. Lee and R. A. Scholtz, "Ranging in a dense multipath environment using an UWB radio link," IEEE Journal on Selected Areas in Communications, vol. 9, no. 20, pp. 1677-1683 Dec. 2002.
  11. S. S. Ghassemzadeh, L. J. Greenstein, T. Sveinsson, A. Kavcic, and V. Tarokh, "UWB delay profile models for residential and commercial indoor environments," IEEE Transactions on Vehicular Technology, vol. 54, no. 4, pp. 1235-1244, July 2005. https://doi.org/10.1109/TVT.2005.851379
  12. A. Medeisis, A.Kajackas, "On the Use of the Universal Okumura-Hata Propagation Prediction Model in Rural Areas", Proceedings of the IEEE Vehicular Technology Conference, Vol. 3, May 2000, pp. 450-453.