Abstract
In the era of information society and 5G networks, cars are extremely important mobile information carriers. In order to meet the needs of multi-scenario business requirements such as vehicle assisted driving and in-vehicle entertainment, cars need to interact with the outside world. This interconnection and data transmission process is usually called vehicular communication (V2X, Vehicle-to-Everything). Device-to-device (D2D) communication not only has partial nature of communication, but also alleviate the current problem of spectrum scarcity of resources. The application of D2D communication in V2X can meet the requirements of high reliability and low latency, but resource reuse also brings interference. Software-defined networking (SDN) provides an optimal solution for interoperability and flexibility between the V2X and D2D communication. This paper reviews the integration of D2D and V2X communication from the perspective of SDN. The state-of-the-art and architectures of D2D-V2X were discussed. The similarity, characteristics, routing control, location management, patch scheduling and recovery is described. The integrated architecture reviewed in this paper can solve the problems of routing management, interference management and mobile management. It also overcome the disconnection problem between the D2D-V2X in terms of SDN and provides some effective solutions.
Highlights
Since the introduction of the 1G mobile communication system in the 1980s, mobile communication technology has developed rapidly at a rate of 10 years and has penetrated into all aspects of society and had a profound impact on all walks of life
With the popularization of smart terminals and the continuous emergence of new wireless services such as the Internet of Things (IoT), Internet of Vehicles (IoV), and virtual reality (VR), higher requirements are put forward for the performance indicators of future mobile communication systems, which promotes the global academic and industrial circles to invest in 5G mobile communication system standardization research
With the gradual deepening and maturity of Software-defined networking (SDN) and V2X related technologies in 5G networks, how to solve cross industry and cross vendor coordination issues based on the open architecture of software-defined V2X communication (SD-V2X), and to conduct more in-depth applied research on feasible business models, will become the basis of research hotspots in the field
Summary
Since the introduction of the 1G mobile communication system in the 1980s, mobile communication technology has developed rapidly at a rate of 10 years and has penetrated into all aspects of society and had a profound impact on all walks of life. Based on [13], the authors in [14] further proposed a software-defined mobile cloud D2D communication framework for public safety applications in 5G networks, using a layered architecture to place SDN controllers. From the perspective of D2D deployment and application, existing research has combined D2D communication with social networks for resource allocation, interference control, routing, and data distribution to effectively improve the network performance, but it lacks in the actual cellular network SD-D2D to deploy and apply research in the architecture. The vehicles can cooperate with each other based on the instructions of the SDN controller to obtain the complete update content This SDN based software update distribution method improves the network performance by reducing the used cellular bandwidth and the corresponding usage costs (such as the dedicated short-distance communication band-width) and software update delivery delay. With the gradual deepening and maturity of SDN and V2X related technologies in 5G networks, how to solve cross industry and cross vendor coordination issues based on the open architecture of SD-V2X, and to conduct more in-depth applied research on feasible business models, will become the basis of research hotspots in the field
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