This service chaining is orchestrated by the management layer, in which overlay network for the VNFs is established using network control protocols like OpenFlow [9]. Figure 4 shows a new Urban-X architecture combined with SDN and NFV technologies.
IEEE 802.1X is a port-based network access control protocol that is used to establish mutual authentication and works as an efficient key exchange mechanism between STAs and authentication servers in wired and wireless LANs [22].
In the transport network, the transmission control protocol (TCP) cannot efficiently resolve congestion because of the lower layer retransmissions.
In the same way, in [6], it was demonstrated the feasibility of using IEEE 802.11b networks for transfer control protocol and user datagram protocol communications with moving cars.
However, how to design the relay network for standard transport control protocol (TCP), which is very important for application layer service, is rarely investigated.
On large-scale network systems using Transmission control protocol (TCP /Internet protocol (IP), there is no standard suggested for single directory––certainly without one to be routinely used on the scale of intranets.
However, deploying these policies in traditional network is complicated and security vulnerable due to the distributed network control and lack of standard control protocol.
In addition, video-chunk delivery in P2P networks typically employs transmission control protocol (TCP) or user datagram protocol (UDP) as the underlying transport control protocol.
Based on the reinforcement learning mechanism, the neuro-adaptive control agent is constructed using actor-critic architecture, which consists of two interacting neural networks, one for optimal control protocol, known as the actor NN, and the other for policy evaluation, known as critic NN.
Compared with conventional sensor network security solutions, our access control protocol can defend against most well-recognized attacks in sensor networks, and achieve better computation and communication performance due to the more efficient algorithms based on ECC than those based on RSA.
