Earticle

초록

영어

Vehicle Ad-hoc Network (VANET) has recently received a lot of attention as the fundamental technology of Intelligent Transportation System. Among other characteristics of VANET, the rapid mobility particularly causes the problem of time constraint in delivery of data, thereby resulting in the low data accessibility. Therefore, the requested service is likely to suffer from poor performance. This paper proposes an efficient method to improve data accessibility in VANET by utilizing the data replica of Roadside Unit (RSU). Both data access pattern and driving pattern are utilized to decide which data item should be replicated in RSU. The conducted simulations clearly reveal that the proposed methodology outperforms other schemes in a variety of environments.

목차

Abstract
 1. Introduction
 2. Related Work
 3. Modeling VANET Environment
 4. Data Replica Allocation Algorithm in RSU
  4.1. Driving and Data Access Pattern
  4.2. Replica Allocation Methods
  4.3. RSU Operation
 5. Performance Evaluation
  5.1. Simulation Environment
  5.2. The Effect of Velocity, FV Ratio and Zipf Parameter
 6. Conclusion
 Acknowledgements
 References

키워드

저자

• Sungjin Park [ Department of Computer Science and Engineering, Korea University ]
• SangKeun Lee [ Department of Computer Science and Engineering, Korea University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605