Effective Life and Area Based Data Storing and Deployment in Vehicular Ad-Hoc Networks

Hirokazu Miura^1,2, Hideki Tode², Hirokazu Taki¹

¹Faculty of Systems Engineering, Wakayama University, Wakayama, Japan.
²Department of Computer Science and Intelligent Systems, Osaka Prefecture University, Sakai, Japan.

DOI: 10.4236/cn.2015.73014                

Abstract

In vehicular ad-hoc networks (VANETs), store-carry-forward approach may be used for data sharing, where moving vehicles carry and exchange data when they go by each other. In this approach, storage resource in a vehicle is generally limited. Therefore, attributes of data that have to be stored in vehicles are an important factor in order to efficiently distribute desired data. In VANETs, there are different types of data which depend on the time and location. Such kind of data cannot be deployed adequately to the requesting vehicles only by popularity-based rule. In this paper, we propose a data distribution method that takes into account the effective life and area in addition to popularity of data. Our extensive simulation results demonstrate drastic improvements on acquisition performance of the time and area specific data.

Keywords

Vehicular Ad-Hoc Networks (VANETs), Popularity, Effective Life, Effective Area, Data Deployment

Conflicts of Interest

The authors declare no conflicts of interest.

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