Analytical Evaluation of Directional-Location Aided Routing Protocol for VANETs

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• 作者：Ram Shringar Raw ; D. K. Lobiyal ; Sanjoy Das…
• 关键词：VANET ; DIR ; LAR ; D ; LAR ; Average number of hop counts ; Link lifetime ; Path throughput
• 刊名：Wireless Personal Communications
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：82
• 期：3
• 页码：1877-1891
• 全文大小：1,341 KB
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• 作者单位：Ram Shringar Raw (1)
  D. K. Lobiyal (2)
  Sanjoy Das (3)
  Sushil Kumar (2)
  
  1. Ambedkar Institute of Advanced Communication Technologies and Research, Delhi, India
  2. Jawaharlal Nehru University, New Delhi, India
  3. Galgotias University, Greater Noida, India
  
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Signal,Image and Speech Processing
  Processor Architectures
  
• 出版者：Springer Netherlands
• ISSN：1572-834X

文摘

Vehicular Ad-hoc Networks (VANETs) are now considered as a way to realize active safety, by providing the position information of each other or the possible danger warning by wireless vehicular communications. Multi-hop data delivery in VANETs is a challenging task, since it encounters rapid changes in network topology and frequent fragmentation in the network. Because of these characteristics, routing algorithms based on greedy forwarding are known to be very suitable for VANETs. The design and implementation of efficient and scalable routing protocols for VANETs is a challenging task due to high dynamics and mobility constraints. In this paper, we have worked on a routing protocol over VANETs to efficiently broadcast the information for the sake of active safety applications, such as the positions and the directions of the vehicles. Therefore, we have explained a position-based routing protocol called directional-location aided routing (D-LAR) with (1) location-aided routing utilizes location information using GPS to limit the area for discovering a new route to a smaller request zone and (2) directional routing having direction closest to the line drawn between source and destination. D-LAR protocol is a greedy based approach to forward packet to the node present in request zone part of sender’s transmission range as a most suitable next-hop node. Further, we have justified the feasibility of D-LAR routing protocol for VANETs. Through analytical analysis we have also given the relationship among the average number of hop counts, link lifetime, and path throughput metrics for the protocol. Finally, simulation results show that the proposed formulation can be used to evaluate path throughput accurately in the network.