Journal ArticleDOI
Towards Efficient Geographic Routing in Urban Vehicular Networks
TLDR
The improved greedy traffic-aware routing protocol (GyTAR), which is an intersection-based geographical routing protocol that is capable of finding robust and optimal routes within urban environments, is introduced.Abstract:
Vehicular ad hoc networks (VANETs) have received considerable attention in recent times. Multihop data delivery between vehicles is an important aspect for the support of VANET-based applications. Although data dissemination and routing have extensively been addressed, many unique characteristics of VANETs, together with the diversity in promising applications, offer newer research challenges. This paper introduces the improved greedy traffic-aware routing protocol (GyTAR), which is an intersection-based geographical routing protocol that is capable of finding robust and optimal routes within urban environments. The main principle behind GyTAR is the dynamic and in-sequence selection of intersections through which data packets are forwarded to the destinations. The intersections are chosen considering parameters such as the remaining distance to the destination and the variation in vehicular traffic. Data forwarding between intersections in GyTAR adopts an improved greedy carry-and-forward mechanism. Evaluation of the proposed routing protocol shows significant performance improvement in comparison with other existing routing approaches. With the aid of extensive simulations, we also validate the optimality and sensitivity of significant GyTAR parameters.read more
Citations
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Journal ArticleDOI
Data communication in VANETs
Felipe D. Cunha,Leandro A. Villas,Azzedine Boukerche,Guilherme Maia,Aline Carneiro Viana,Raquel A. F. Mini,Antonio A. F. Loureiro +6 more
TL;DR: This work surveys VANETs focusing on their communication and application challenges, and discusses the protocol stack of this type of network, and provides a qualitative comparison between most common protocols in the literature.
Journal ArticleDOI
A survey on position-based routing for vehicular ad hoc networks
TL;DR: It is observed that a hybrid routing protocol is the best choice for VANETs in both urban and highway environments, and the pros and cons for each routing protocol are presented.
Journal ArticleDOI
Vehicular Communications: A Network Layer Perspective
TL;DR: In this paper, the authors provide a comprehensive overview of vehicular communications from the network layer perspective and identify the challenges confronted by the current vehicular networks and present corresponding research opportunities.
Journal ArticleDOI
Novel self-adaptive routing service algorithm for application in VANET
TL;DR: A reliable self-adaptive routing algorithm (RSAR) based on this heuristic service algorithm is proposed and, by combining the reliability parameter and adjusting the heuristic function, RSAR achieves good performance with VANET.
Journal ArticleDOI
Adaptive Quality-of-Service-Based Routing for Vehicular Ad Hoc Networks With Ant Colony Optimization
TL;DR: This paper mathematically formulate the routing selection issue as a constrained optimization problem and proposes an ant colony optimization (ACO)-based algorithm to solve this problem, and a terminal intersection (TI) concept is presented to decrease routing exploration time and alleviate network congestion.
References
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Proceedings ArticleDOI
GPSR: greedy perimeter stateless routing for wireless networks
Brad Karp,Hsiang-Tsung Kung +1 more
TL;DR: Greedy Perimeter Stateless Routing is presented, a novel routing protocol for wireless datagram networks that uses the positions of routers and a packet's destination to make packet forwarding decisions and its scalability on densely deployed wireless networks is demonstrated.
Proceedings ArticleDOI
Location-aided routing (LAR) in mobile ad hoc networks
Young-Bae Ko,Nitin H. Vaidya +1 more
TL;DR: An approach to utilize location information (for instance, obtained using the global positioning system) to improve performance of routing protocols for ad hoc networks is suggested.
Greedy Perimeter Stateless Routing for Wireless Networks
TL;DR: Greedy Perimeter Stateless Routing is presented, a novel routing protocol for wireless datagram networks that uses the positions of routers and a packet’s destination to make packet forwarding decisions and its scalability on densely deployed wireless networks is demonstrated.
Journal ArticleDOI
VADD: Vehicle-Assisted Data Delivery in Vehicular Ad Hoc Networks
Jing Zhao,Guohong Cao +1 more
TL;DR: This work proposes several vehicle-assisted data delivery (VADD) protocols to forward the packet to the best road with the lowest data-delivery delay, and Experimental results show that the proposed VADD protocols outperform existing solutions in terms of packet-del delivery ratio, data packet Delay, and protocol overhead.
Proceedings ArticleDOI
A routing strategy for vehicular ad hoc networks in city environments
TL;DR: This paper analyzes a position-based routing approach that makes use of the navigational systems of vehicles and compares this approach with non-position-based ad hoc routing strategies (dynamic source routing and ad-hoc on-demand distance vector routing).