The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Handover performance evaluation by a IEEE 802.11p based handover algorithm and its parameter under high-speed driving environments

고속주행환경에서 IEEE802.11p 기반 통신 핸드오버 알고리즘 파라미터 값에 따른 핸드오버 성능 분석

  • Received : 2013.08.23
  • Accepted : 2013.10.14
  • Published : 2013.10.31
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Abstract

ITS technologies are in the research and development around the world as a solution for maximizing the efficiency of the existing road infrastructure, solving the complex traffic problems and providing the convenient driving services. The core of these ITS technologies is to provide the information for the requesting users in fast and accurate way from the server. In real driving conditions, there are many communication barriers around the vehicles and the base stations so that an accurate and robust handover technology is needed in order to ensure seamless ITS services. This paper introduced an WAVE handover algorithm implemented in a real communication device and five parameters mainly affecting the handover performance are evaluated. The handover performance is measured by changing the parameter values at a highway testbed. The test results show that the handover algorithm parameter values should be configured carefully to remove the handover ping-pong problems.

세계 각국에서 연구개발 중인 ITS 기술은 기존 도로 인프라의 효율성 극대화, 복잡한 교통문제 해결 그리고 운전자 편의 서비스 제공 등을 해결하기 위한 방안으로 기대되고 있다. 이러한 ITS 기술의 핵심은 서버가 교통정보를 수집하고 수집된 정보를 빠르고 정확하게 필요한 사용자에게 제공하는데 있다. 실제 주행환경에서는 차량과 기지국 주변에 수많은 통신장애요소들이 혼재함으로 ITS관련 서비스를 끊김없이 보장하기 위해서는 정확하고 잡음신호에 강인한 핸드오버 기술이 필요하다. 본 논문에서는 실제 차량용 통신장치에 구현된 WAVE 핸드오버 알고리즘을 소개하고 성능에 영향을 미치는 5가지 주요 파라미터를 도출하였다. 본 논문에서는 고속주행 시험도로에서 도출된 파라미터들에 대해 여러 값을 대응하여 각각의 조건에서 핸드오버 성능 변화를 분석하였다. 본 논문의 시험결과는 빈번하게 발생하는 핸드오버 핑퐁 문제 해결을 위해 핸드오버 알고리즘에 사용되는 파라미터 값을 얼마나 잘 설정해야 하는지를 설명해준다.

Keywords

References

  1. J. B. Kennery, "Comparing communication performance of DSRC OBEs from multiple suppliers," 19th ITS World Congress, Vienna, Austria, October 2012.
  2. S. Kim, "An Evaluation of the Performance of Wireless Network in Vehicle Communication Environment", Journal on the Korean Institute of Communications and Information Sciences, vol. 36, no. 10, pp.816-822, 2011. https://doi.org/10.7840/KICS.2011.36A.10.816
  3. P. Papadimitratos, "Vehicular communication systems: enabling technologies, applications, and future outlook on intelligent transportation," IEEE Communications Magazine, pp.84-95, November, 2009.
  4. IEEE Std 802.11p, IEEE standard for information technology telecommunications and information exchanges between systems, Part 11, Amendment 6, July 2010.
  5. A. Bohm and M. Jonsson, "Handover in IEEE 802.11p based delay sensitive vehicle to infrastructure communication," Research Report IDE-0924, Halmstad University, Sweden, 2009.
  6. A. Prakash, "A cross layer seamless handover scheme in ieee802.11p based vehicular networks," Contemporary computing communications in computer and information science, vol. 95, pp84-95, 2010. https://doi.org/10.1007/978-3-642-14825-5_8
  7. J. Choi and H. Lee, "Supporting handover in an ieee 802.11p based wireless access system," Proc. of the Vehicular internetworking, pp.75-80, September 2010.
  8. A. Shimizu, S. Fukuzawa, T. Osafune, M. Hayashi, and S. Matsui, "Enhanced functions of 802.11 protocol for adaptation to communications between high sped vehicles and infrastructures," Proc. ITS Telecommunications, pp.1-3, October 2007.
  9. W. Choi, M. Kim, S. Lee, and H. Oh, "Implementation of handover under multichannel operation in ieee802.11p based communication systems," International conference on ICT Convergence(ICTC), 2011.
  10. B. Gukhool and S. Cherkaoui, "Handoff in IEEE802.11p based vehicular networks," Proc. of IFIP Wireless and optical communications networks, pp.1-5, April 2009.
  11. J. Chung, M. Kim, Y. Park, M. Choi, and H. Oh, "Time coordinated V2I communications and handover for wave networks," IEEE Journal on Selected Areas in Communications, vol.29, no.3, pp.545-558, March 2011. https://doi.org/10.1109/JSAC.2011.110305
  12. Marie Moe, Vilmos Nebehaj, and Thierry Ernst, "CVIS performance test results: fast handovers in an 802.11p network" in Proceedings of Conference on Telecommunications for ITS, Kyoto, Japan, 2010
  13. Y. Song, W. Lee, and H. Oh, "Performance evaluation of wave communication systems under a high speed driving condition in a highway," The Journal of the Korea Institute of Intelligent Transport Systems, vol.12, no.3, pp.96-101, 2013. https://doi.org/10.12815/kits.2013.12.3.096

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