Abstract
Internet of Vehicle (IoV) is a sub class of vehicular ad hoc networks with more advanced cloud and Internet-enabled services. These networks offer various types of safety and infotainment services and provide comfortability and safety to passengers as well as to the drivers. Due to the high mobility of nodes, the nodes are out from its communication range and the information becomes outdated and causes link disconnections and packet dropping. Most feasible routing protocols are needed to provide in-time data communication, handle high mobility of nodes, dynamic topologies and unpredictable environments of these networks. In this paper, we proposed SACBR (Self-Assessment Cluster-based Routing) protocol in which the Cluster Heads (CHs) can communicate with other CHs. Every vehicle node initiates a self-assessment approach based on more appropriate routing metrics and elects the CH for every cluster and then collects the data from member nodes and further forward the data to other CHs. The CH is responsible to manage its own and member nodes’ data forwarding process. The proposed protocol provides more stability and less overhead compared to the aggregation method where every node exchanges its data with a one-hop neighbor. Proposed protocol suites sparse and dense traffic scenarios where most of the time vehicle nodes are moving in platoons or snaking structures. The experimental results show the better performance of SACBR compared to state-of-the-art protocols.
Highlights
Internet of Vehicle (IoV) enables communication between vehicle nodes with or using prior infrastructure to provide safety and comfort to the passenger as well as to the drivers [1], [2]
The proposed protocol improves the delivery time by adopting a clustering approach where the vehicle nodes are divided into clusters and every cluster has one Cluster Head (CH) to manage the other clusters in the network
After selection of the CH in the network, the CH broadcasts the join request to another Cluster Members (CM)
Summary
Internet of Vehicle (IoV) enables communication between vehicle nodes with or using prior infrastructure to provide safety and comfort to the passenger as well as to the drivers [1], [2]. Due to the increasing demand for new services, the networks become more complex where the vehicle nodes are out from its communication range and cause of outdated information, link disconnections, packet dropping and delay [6]. Without very much characterized and effective routing conventions, vehicle nodes might not be able to offer Quality of Services (QoS) in the network [10] To address these issues, numerous routing protocols have been proposed. Topology based protocols have a maintenance issue in terms of re-establishing the connectivity because vehicle nodes keep the node information in routing tables. CH is responsible to manage its own and member nodes’ data forwarding process These features make proposed protocol differ from existing cluster based protocols.
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