In urban scenario, the imbalanced spatial distribution of traffic flow exerts an important influence on the performance of communication between vehicles and the Roadside Unit (RSU). This paper presents a strategy for RSUs placement based on the road traffic characteristics, aiming at improving connectivity in vehicular ad hoc networks. To divide the coverage area of each RSU, we propose an Expansion and Coloration Algorithm (ECA). The average connectivity model for all vehicles in the network is established based on the results obtained from ECA. The RSUs placement problem is formulated as a combinatorial optimization problem, of which the objective is to maximize the average connectivity probability by searching for an optimal position combination of the given RSUs. Taking part of an actual urban road network as an example, the RSUs placement problem is calculated and the optimal placement scheme is evaluated. Simulation results show that the optimal placement scheme obtained from our strategy leads to the best connectivity compared to uniform placement and hot-spot placement.
목차
Abstract 1. Introduction 2. Related Work 3. Coverage Area Division 4. Problem Formulation 4.1 Connectivity of road segment 4.2 The average connectivity for RSUs placement 4.3 The optimization of RSUs placement problem 5. Case Study 6. Conclusions References
키워드
VANETRSUs PlacementExpansion and Coloration AlgorithmAverage Connectivity ProbabilityCombinatorial Optimization Problem
저자
Hai-qing Liu [ School of Control Science and Engineering, Shandong University, Jinan, 250061, Shandong, P. R. China ]
Si-jing Ding [ School of Control Science and Engineering, Shandong University, Jinan, 250061, Shandong, P. R. China ]
Li-cai Yang [ School of Control Science and Engineering, Shandong University, Jinan, 250061, Shandong, P. R. China ]
Corresponding author
Tai Yang [ School of Information Science and Engineering, Shandong University, Jinan, 250061, Shandong, P. R. China ]
보안공학연구지원센터(IJHIT) [Science & Engineering Research Support Center, Republic of Korea(IJHIT)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Hybrid Information Technology
간기
격월간
pISSN
1738-9968
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Hybrid Information Technology Vol.7 No.1