Data dissemination is the basis of implementing any kind of applications in Vehicular Ad Hoc Networks (VANETs). However, due to the high mobility of vehicles, severe channel fading, and limited transmission range, vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications both tend to be transient and unreliable, which extremely restricts the efficiency of data dissemination. To tackle this problem, we propose a Cooperative Content Dissemination Scheme (CCDS), especially for large-size content in resource-intensive applications of highway vehicular networks. CCDS coordinates the cooperation of multiple infrastructures, multiple vehicles in two moving directions and vehicles' mobility to facilitate the target vehicle to download data. Based on CCDS, the process of data dissemination and achievable data download volume are derived and analysed theoretically. Finally, through extensive simulations, both CCDS's significant benefits in terms of data download volume and the accuracy of theoretical analysis are demonstrated. Moreover, the results are of great value in guiding the effective division of target content among multiple infrastructures and vehicles.
Enabling efficient content dissemination for cooperative vehicular networks
2017-10-01
362455 byte
Conference paper
Electronic Resource
English