Double-layer matching game method oriented to QoE under 5G hybrid scenes

Abstract

The invention discloses a double-layer matching game method oriented to QoE under 5G hybrid scenes. The method is characterized in that C cellular users CU and D D2D users DU are coexistent in hybrid way at a small cellular base station SBS under the 5G scene. The user quality of experience QoE is used as the optimization index to realize the stable matching between the CU and the channel and between the DU and a resource block. The method comprises the following steps: one, the CU and the channel respectively establish a preference list for the opposite individual, the matching between the channel in the cellular and the CU is performed by adopting the many-for-one matching game algorithm considering the existing matching; two, the DU and the resource block respectively establish the preference list for the opposite individual, the resource block is distributed for the DU in the cellular to perform the communication by adopting the many-for-many matching game algorithm considering the existing matching; and three, the channel distribution vector of the CU and the matching result of the DU and the resource block are updated through continuous iteration, thereby achieving the stable two-sided matching in the end. A spectrum distribution scheme disclosed by the invention is simple and practical, and has good application prospect.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method based on matching game theory in a 5G communication system where D2D and cellular users coexist, in particular to a QoE-oriented double-layer matching game method in a 5G mixed scenario. Background technique [0002] With the rapid development of wireless technology, wireless access network technology has entered a new stage of development, that is, the development stage of the fifth generation mobile communication system (5G). The 5G environment is characterized by ultra-high traffic density, ultra-high mobility, and ultra-high connection density, including technical scenarios such as continuous wide-area coverage, high-capacity hotspots, low-power, high-reliability, low-latency, and high-reliability scenarios. changing business needs. At the same time, the current wireless resources are becoming increasingly scarce, so the research on wireless resource ma...

AI Technical Summary

Problems solved by technology

The 5G network environment is heterogeneous and dynamic, which poses more severe challenges to radio resource management

[0003] Although D2D technology can enhance spectrum utilization efficiency and increase system capacity, it will also bring interference to cellular systems due to spectrum sharing.

At the same time, the traditional resource allocation optimization goal is the system throughput, without considering the user's QoE (Quality of Experience; quality of experience) requirements

The utility of QoE is not a linear equation about the sum of the throughput of all channels, so the above-mentioned optimization method of the prior art is not applicable

In addition, when discussing user resource allocation in small cells, the interference problem of D2D users to cellular users is not considered

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