Earticle

초록

영어

Roadside Unit (RSU) in Vehicular Ad-hoc Network (VANET) is an essential unit usually placed at intersections to collect and analyze traffic data given from smart vehicles. Due to the costs of RSU setup, effective RSU allocation is one of important issues in VANET. In this paper, we provide an optimal RSU allocation algorithm with a concept of intersection-connectivity between intersections. We initially find optimal RSU candidate intersections which can cover the entire intersections, in the meantime minimizing the overlapped transmission coverage of RSUs. Then we repeatedly eliminate RSU candidates by the value of intersection-connectivity between RSU candidate intersections. The intersection-connectivity between two intersections is basically measured by the number of vehicles with the same moving pattern such that pass through both intersections. Thus, a high value of intersection-connectivity between two intersections stands for that the traffic information obtained at one intersection can be carried-and-forwarded to the other intersection with a high probability by those vehicles. With this feature, we repeatedly remove RSUs having high intersection-connectivity with its neighbors. Finally, we provide simulated analyses of our algorithms using real urban roadmaps of JungGu and Seochogu in Seoul. We analyze how our algorithms work in different types of roadways with real traffic data, and find the optimal number and positions of RSUs in these areas.

목차

Abstract
 1. Introduction
 2. Related Work
 3. Assumption and Definition
  3.1 RSU Configuration
  3.2 Intersection Priority
  3.3 Intersection Connectivity
  3.4 RSU Connectivity and Coverage
  3.5 Notation
 4. Intersection Connectivity-based RSU Allocation
  4.1 Initial RSU Candidate Selection
  4.2 RSU Connectivity Network Construction
  4.3 RSU Candidate Elimination
 5. Simulation Results
  5.1 Simulation Environment
  5.2 Analysis of Simulation Results
 6. Conclusion
 Acknowledgements
 References

키워드

저자

• Jeonghee Chi [ Department of Internet and Media Engineering, Konkuk University ]
• Yeongwon Jo [ Department of Internet and Media Engineering, Konkuk University ]
• Hyunsun Park [ Department of Internet and Media Engineering, Konkuk University ]
• Taehyeon Hwang [ Department of Internet and Media Engineering, Konkuk University ]
• Soyoung Park [ Department of Internet and Media Engineering, Konkuk University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605