Πλεονεκτήματα οχηματικών δικτύων 5G στηριζόμενα σε αρχιτεκτονική SDN
Advantages of 5G VANETs on Software Defined Vehicular Networks
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Keywords
V2X ; 5G networks ; MEC ; SDN ; Vanet ; Fog computingAbstract
Wireless and mobile networks have been through major evolutions during last decades to meet with the increasing demands of the end users and the global market of telecommunications, in particular regarding the demands in bandwidth, high-speed connections, less delays and increased reliability of services, mostly in the applications used in VANETs. 5G Mobile Networks, a technology to be implemented widely in the near future, promises to fulfil all these demands and to radically change the mode of networking.
This paper is proposing a VANET architecture that supports network slicing in V2X communications based in network softwarization technologies, such as SDN and NFV. We have implemented this architecture in a simulation using Mininet–Wifi and creating an algorithm for implementing network slicing aiming to the automation of the handover process between FOGs by SDN controllers, depending on the load usage in each FOG.
We tested the delay, the bandwidth and the packet loss ratio with slicing and no slicing process and have come to the conclusion that on t=120, delay was 15ms (without using slicing) versus 5ms (when using slicing), bandwidth for video streaming service from the server was 20Mbps (without using slicing) versus 25Mbps (when using slicing) and Quality of Service for the video regarding the packet loss ratio 50% (without using slicing) versus 10%-20% (when using slicing).