scholarly journals Trajectory-Based Hierarchical Adaptive Forwarding in Vehicular Ad Hoc Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Hao Wang ◽  
Liangyin Chen ◽  
Shijia Liu ◽  
Songtao Fu ◽  
Qian Luo ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Delivery ◽  
Navigation Systems ◽  
Light Traffic ◽  
Extensive Simulation ◽  
Vehicle To Vehicle ◽  
Hoc Networks ◽  
Better Than

This paper proposes a Trajectory-Based Hierarchical Adaptive Forwarding (THAF) scheme, tailored and optimized for the efficient multihop vehicle-to-vehicle (v2v) data delivery in vehicular ad hoc networks. We utilize the trajectories of vehicles provided by GPS-based navigation systems to predict forward delay and access area in a privacy-preserving manner. Different from existing trajectory-based forwarding schemes, we establish a hierarchical VANET topology to optimize forwarding path and adopt adaptive diffusion strategy to forward data in light-traffic situations. Through theoretical analysis and extensive simulation, it is shown that our design performs better than the existing schemes.

scholarly journals Efficient and Reliable Dissemination in Mobile Ad Hoc Networks by Location Extrapolation

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Adnan Agbaria ◽  
Muhamad Hugerat ◽  
Roy Friedman
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Simulation Study ◽  
Ad Hoc ◽  
Data Dissemination ◽  
Extensive Simulation ◽  
Control Overhead ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Better Than

Data dissemination is an important service in mobile ad hoc networks (MANETs). The main objective of this paper is to present a dissemination protocol, calledlocBcast, which utilizes positioning information to obtain efficient dissemination trees with low-control overhead. This paper includes an extensive simulation study that compares locBast with selfP, dominantP, fooding, and a couple of probabilistic-/counter-based protocols. It is shown that locBcast behaves similar to or better than those protocols and is especially useful in the following challenging environments: the message sizes are large, the network is dense, and nodes are highly mobile.

scholarly journals Cooperation as a Service in VANET: Implementation and Simulation Results

2012 ◽  
Vol 8 (2) ◽  
pp. 153-172 ◽  
Author(s):  
Hajar Mousannif ◽  
Ismail Khalil ◽  
Stephan Olariu
Keyword(s):  
Ad Hoc Networks ◽  
Traffic Safety ◽  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Network Routing ◽  
The Road ◽  
Vehicle To Vehicle ◽  
Simulation Results ◽  
Hoc Networks

The past decade has witnessed the emergence of Vehicular Ad-hoc Networks (VANET), specializing from the well-known Mobile Ad Hoc Networks (MANET) to Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) wireless communications. While the original motivation for Vehicular Networks was to promote traffic safety, recently it has become increasingly obvious that Vehicular Networks open new vistas for Internet access, providing weather or road condition, parking availability, distributed gaming, and advertisement. In previous papers [27,28], we introduced Cooperation as a Service (CaaS); a new service-oriented solution which enables improved and new services for the road users and an optimized use of the road network through vehicle's cooperation and vehicle-to-vehicle communications. The current paper is an extension of the first ones; it describes an improved version of CaaS and provides its full implementation details and simulation results. CaaS structures the network into clusters, and uses Content Based Routing (CBR) for intra-cluster communications and DTN (Delay–and disruption-Tolerant Network) routing for inter-cluster communications. To show the feasibility of our approach, we implemented and tested CaaS using Opnet modeler software package. Simulation results prove the correctness of our protocol and indicate that CaaS achieves higher performance as compared to an Epidemic approach.

scholarly journals Latency Estimation-Based Data Delivery Scheme for Vehicular Ad Hoc Networks

2012 ◽  
Vol 8 (12) ◽  
pp. 527097 ◽  
Author(s):  
Haigang Gong ◽  
Lingfei Yu ◽  
Ke Liu ◽  
Fulong Xu ◽  
Xiaomin Wang
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Delivery ◽  
Hoc Networks

Trajectory-Based Data Forwarding for Light-Traffic Vehicular Ad Hoc Networks

2011 ◽  
Vol 22 (5) ◽  
pp. 743-757 ◽  
Author(s):  
Jaehoon Jeong ◽  
Shuo Guo ◽  
Yu Gu ◽  
Tian He ◽  
David H.C. Du
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Forwarding ◽  
Light Traffic ◽  
Hoc Networks
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