A wireless access network based on hybrid fog computing and its resource allocation method

Abstract

The present invention provides a wireless access network based on hybrid fog computing and its resource allocation method, including: a cloud platform composed of a BBU resource pool, connected to the core network through a backhaul network; fog composed of the first layer and the second layer The platform, the first layer consists of RRH nodes with computing and storage capabilities to form fog base station nodes, and the fog base station nodes and BBU resource pools are connected through fronthaul network communication; the second layer consists of vehicles to form vehicle fog nodes, and vehicles are connected through inter-vehicle links Communication connection, the vehicle communicates with the corresponding fog node base station through the central link within the signal range of the fog base station node; the cloud platform uniformly allocates computing task migration by knowing the idle computing resources and computing load of each vehicle and fog base station node ; Migrating computing tasks to vehicles outside the signal range through the vehicle-to-vehicle link between vehicles. The invention can improve computing power resources, reduce transmission delay, and flexibly allocate, so as to minimize the execution time of computing tasks.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to a wireless access network based on hybrid fog computing and a resource allocation method thereof. Background technique [0002] With the explosive increase in the number of vehicles in our lives, the increase in the number of intelligent traffic management devices, and the increasing complexity of in-vehicle applications, the data transmission volume of the entire ITS is growing rapidly. In order to meet this growing demand for data transmission, many researchers have turned their attention to 5G technology. Among them, F-RAN (fog-based radio access network, FogRadio Access Network) is considered to be an important candidate technology component of 5G technology. Through the combination of 5G technology and the Internet of Vehicles, it can meet the huge data transmission needs of vehicles. The infrastructure of F-RAN is improved on the basis of C-RAN (Cloud Radi...

AI Technical Summary

Problems solved by technology

However, both of these two solutions have drawbacks. The former will generate considerable transmission delay and occupy normal communication resources, while the latter will face resource limitations on the entire fog level, and resource migration between fog nodes It has inherent transmission delay, which cannot be eliminated from the architectural design

Images