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Optimal placement in hybrid VANETs-sensors networks

In this paper, we consider the total road coverage problem in hybrid VANET-Sensor networks. Our proposal aims to determine the optimal deployment of networked sensors and RSUs, along the sides of the road, that ensures complete road coverage while minimizing the total network cost and…

December 19, 2015 · by NS3 Tutorial ·

Probabilistic key distribution in vehicular networks with infrastructure support

We propose a probabilistic key distribution protocol for vehicular network that alleviates the burden of traditional public-key infrastructures. Roadside units act as trusted nodes and are used for secret-sharing among vehicles in their vicinity. Secure communication is immediately possible between these vehicles with…

December 19, 2015 · by NS3 Tutorial ·

SERVUS: Reliable low-cost and disconnection-aware broadcasting in VANETs

The future of Vehicular Ad-Hoc Networks (VANET) will rely mainly on the support of efficient information dissemination protocols, whether we talk about safety applications that warn the driver of an imminent collision, a simple update on traffic conditions, or road-side advertisements. One of the…

December 19, 2015 · by NS3 Tutorial ·

Multiflow TCP Traffic in VANETs: Performance Comparison of OLSR and AODV Routing Protocols

In this paper, we investigate the performance of OLSR and AODV protocols in a Manhattan grid scenario when sending triple TCP flow over FTP. We considered data rates of 0.1 Mbps and 1 Mbps. For the simulations, we used SUMO…

December 19, 2015 · by NS3 Tutorial ·

A video frame exchange protocol with selfishness detection mechanism under sparse infrastructure-based deployment in VANET

Due to the limited budget and high maintenance cost, it is difficult to deploy a large amount of roadside units (such as 802.11 base stations) to cover the complicated road areas. This paper addresses an important topic on frame sharing…

December 19, 2015 · by NS3 Tutorial ·

Comparation of Strategies for Data Replication in VANET Environment

High vehicle mobility and frequent topology changes of VANET have negative influence on performance of data distribution in such network. If cars are not connected through VANET, they are not able to access data owned by each other. Data availability in…

December 19, 2015 · by NS3 Tutorial ·

Networks of learning automata for the vehicular environment: a performance analysis study

Due to the stringent constraints of constant topological changes and low end-to-end delay, data forwarding in the vehicular enviornment is always a challenging task. In this article, we have analyzed the performance of networks of learning automata (LA) using the concepts of the Bayesian…

December 19, 2015 · by NS3 Tutorial ·

Air quality based optimal path search model for spatio-temporal data set

The proliferation of GIS and GPS technology provide huge amount of geo-data in the form of spatio-temporal dataset. With the increased use of mobile devices, end users tend to avail location based services in various contexts. This requires frequent updation…

December 19, 2015 · by NS3 Tutorial ·

Routing packets to distant locations in VANETs

In the near future vehicular networks (VANETs) based on wireless technology will be part of our daily lives. VANETs enable vehicles that are not necessarily within the same transmission range to communicate with each other. They also allow vehicles to connect to Roadside…

December 19, 2015 · by NS3 Tutorial ·

Research on mobility model for VANETs based on real map

With the development of intelligent transportation systems, more and more attention was paid to the study of VANETs. A reasonable node mobility model is very important to evaluating the authenticity of various VANETs protocols. In this paper, a mobility model…

December 19, 2015 · by NS3 Tutorial ·