GTO: A Broadcast Protocol for Highway Environments over Diverse Traffic Conditions

Several data dissemination protocols in VANETs have been proposed in the literature, however, most of these protocols do not efficiently address broadcast storm and network partition problems simultaneously. This work attempts to fill this gap by proposing a suitable broadcast protocol in vehicular networks, designated GTO, that addresses both the broadcast storm and network partition problems in highway environment. In GTO protocol, all vehicles send beacon packets notifying whether there is or not the information, besides we employ the technique of zone of preference to rebroadcast messages to further vehicles. We compared the proposed protocol with the other five protocols - ATENA, DV-CAST, SRD, AID and Flooding - The results of evaluation show that our proposed protocol was more efficient to disseminate the information, within area of interest, than other five protocols in different traffic conditions.