Abstract
VANET is a hot spot of intelligent transportation researches. For vehicle users, the file sharing and content distribution through roadside access points (AP) as well as the vehicular ad hoc networks (VANET) have been an important complement to that cellular network. So the AP deployment is one of the key issues to improve the communication performance of VANET. In this paper, an access point optimization method is proposed based on particle swarm optimization algorithm. The transmission performances of the routing protocol with random linear network coding before and after the access point optimization are analyzed. The simulation results show the optimization model greatly affects the VANET transmission performances based on network coding, and it can enhance the delivery rate by 25% and 14% and reduce the average delay of transmission by 38% and 33%.
Highlights
As an important part of intelligent transportation system, vehicular ad hoc networks (VANET) can effectively realize a variety of applications like accident early warning, aided driving, road traffic information query, and Internet access service [1]
In order to improve information exchange capacity of vehicular network, this paper proposes the mechanism of optimizing the access points and wireless network coding to improve the performance of network and the connection between the vehicle and the infrastructure
This paper proposes a data distribution mechanism based on network coding in VANET, adopting the energy constraint method to solve the problem of the number of access points (AP) and the particle swarm optimization algorithm to solve the problem of location optimization of AP
Summary
As an important part of intelligent transportation system, VANET can effectively realize a variety of applications like accident early warning, aided driving, road traffic information query, and Internet access service [1]. It is expected in the near future that, with the mass deployment of VANET, VANET will play an important role in the accident early warning, traffic safety, traffic management, and passenger entertainment and offer the comfortable and safe driving environment to users. In order to improve information exchange capacity of vehicular network, this paper proposes the mechanism of optimizing the access points and wireless network coding to improve the performance of network and the connection between the vehicle and the infrastructure
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