Firstly, when a vehicle wants to access the Internet through the roadside base station, we evaluate the access node by employing the direct trust evaluation.
The MMC devices can, in some scenarios, be brought closer to the access node, for example, by gateways connecting a capillary network to a wide area network or by denser deployment of small cells.
The virtual access node is a new notion anticipated for 5G mobile and wireless communications networks, where the functionalities at an access node will be run by various virtual machines that can be modified or extended based on a need basis of the services and/or use cases to be supported.
The general idea is to provide signal coverage and high data rates in dense environments, that is, areas with high user concentrations, by installing low-cost wireless access nodes and exploiting the existing heterogeneous wired infrastructures without a new high-cost cabling.
It gets hyper-local by figuring out so-called "presence areas" around the access point, based on signal strength, architectural information, or triangulation with other access nodes within the same facility or space.
We say that a node is visited by a token when the node gets exclusive access to the token; the visitation period can be used by the node to add node-specific information into the token, resulting in data aggregation.
This polling node polls the other six-sensor nodes in a round-robin fashion, so that a regular node forwards packets (both data and Hello) only when it is polled by the polling node and given access to the channel.
It should be noted here that the other traceback methods in the face of such a situation are only able to trace up to the edge router and therefore, they would cut off the access of all nodes forwarded by the edge router. .
