Performance Improvement in Geographic Routing for Vehicular Ad Hoc Networks

Sensors

Omprakash Kaiwartya¹  Sushil Kumar¹  D. K. Lobiyal¹  Abdul Hanan Abdullah² 

[1] Wireless Communications and Networking Research Lab, School of Computer and Systems Sciences, Jawaharlal Nehru University, New Delhi 110067, India; E-Mails:;Faculty of Computing, Universiti Teknologi Malausia (UTM), Skudai Johor 81310, Malaysia; E-Mails:

关键词: geographic distance routing;    vehicular ad hoc networks;    traffic environment;    segment vehicle;    link quality;    degree of connectivity;   

DOI  :  10.3390/s141222342

来源: mdpi

【 摘 要 】

Geographic routing is one of the most investigated themes by researchers for reliable and efficient dissemination of information in Vehicular Ad Hoc Networks (VANETs). Recently, different Geographic Distance Routing (GEDIR) protocols have been suggested in the literature. These protocols focus on reducing the forwarding region towards destination to select the Next Hop Vehicles (NHV). Most of these protocols suffer from the problem of elevated one-hop link disconnection, high end-to-end delay and low throughput even at normal vehicle speed in high vehicle density environment. This paper proposes a Geographic Distance Routing protocol based on Segment vehicle, Link quality and Degree of connectivity (SLD-GEDIR). The protocol selects a reliable NHV using the criteria segment vehicles, one-hop link quality and degree of connectivity. The proposed protocol has been simulated in NS-2 and its performance has been compared with the state-of-the-art protocols: P-GEDIR, J-GEDIR and V-GEDIR. The empirical results clearly reveal that SLD-GEDIR has lower link disconnection and end-to-end delay, and higher throughput as compared to the state-of-the-art protocols. It should be noted that the performance of the proposed protocol is preserved irrespective of vehicle density and speed.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.