Performance Evaluation Of Enhanced Velocity-Based Handoff Algorithm For Vanet

Malaysian Journal of Computer Science

Rosli Salleh¹  Arsalan Emami¹  Oche Michael¹  Ali Jalooli¹  Rafidah Md. Noor¹  Ismail Ahmedy¹ 

关键词: VANET;    Handoff;    Velocity;    Simulation;    Performance;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: University of Malaya * Faculty of Computer Science and Information Technology

【 摘 要 】

Vehicular Ad Hoc Networks (VANETs) is based on 802.11p standard where a vehicle is connected to a base stationin a dynamic manner. The vehicle is traversed from one base station to another and may affect the transmission ofpackets. To minimize the disruption, handoff latency must be kept at minimum duration. This paper presents animprovement of existing handoff mechanism based on vehicle’s velocity. The proposed algorithm is called EnhancedVelocity Handoff (EVHO) where it is defined based on two rules ofa mobility model; vehicle speeds and handofflatency. Each rule provides different equations and transforms them into the EVHO algorithm. EVHO algorithmcreated a new packet frame for neighboring vehicles for transmission. The experiment of EVHO is conducted usinga network simulator, NS-2. The results are compared with existing velocity-based handoff and some significantimprovements on packet delay, packet loss rate and network throughput are shown.

【 授权许可】

Unknown