User connection and virtual resource distribution method in ultra dense heterogeneous network

Abstract

The present invention discloses a user connection and virtual resource distribution method for maximizing benefits of all service providers as a target. The method comprises: based on a benefit function, defining the users' and service providers' benefits; employing the Lagrange to perform dual to obtain necessary and sufficient conditions of optimal resource distribution in a mixing business scene; and employing a low-complexity method to perform iteration solution of a resource distribution result, and finally combining the resource distribution result. A user connection scheme is designed according to the greedy strategy, about a new user arrival condition, the new user selects the optimal base station for connection according to local information in the condition of keeping constant original user connection; and moreover, because the Lagrange dual and the heuristic idea, the user connection and virtual resource distribution method in the ultra dense heterogeneous network can reduce the number of iterations and computation complexity so as to rapidly find the resource distribution scheme.

Description

technical field [0001] The invention belongs to the technical field of wireless resource management in mobile communication, and specifically relates to a method for user connection and virtual resource allocation in a wireless communication system based on a benefit function in an ultra-dense heterogeneous network. Background technique [0002] Wireless Network Virtualization (WNV) abstracts a physical network into multiple virtual networks, so that multiple operators or user groups can share the resources of the same physical network, and can satisfy certain isolation between virtual networks sex. Wireless network virtualization is one of the key technologies in next-generation wireless networks because it can reduce operators' infrastructure construction costs and network operating costs, lower the operator's entry threshold, and help accelerate the research and deployment of wireless technologies. . Due to limited and scarce wireless resources, as well as frequent chan...

AI Technical Summary

Problems solved by technology

However, for an ultra-dense network, due to the large gap in transmit power between base stations of different layers, if the maximum SINR connection strategy is still adopted, a large number of users will simultaneously access the network with higher transmit power and better signal. base stations, resulting in the congestion of these base stations

However, the base stations with relatively abundant resources are in an idle state, resulting in a waste of resources and a decrease in the overall performance of the network.

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