A QoE-oriented two-level matching game method in 5G hybrid scenarios

Abstract

The invention discloses a QoE-oriented double-layer matching game method in a 5G mixed scene, which is characterized in that: in a small cell base station SBS in a 5G scene, C cellular users CU and D D2D user DUs coexist mixedly; The method described above is based on user quality of experience (QoE) as an optimization index to achieve stable matching between CUs and channels, and between DUs and resource blocks. The many-to-one matching game algorithm is used to match the channels and CUs inside the cell; second, DU and resource blocks respectively establish preference lists based on each other’s individual, and use the many-to-many matching game algorithm that considers the existing matching to provide The DUs of the CU allocate resource blocks for communication. Third, through continuous iteration, update the channel allocation vector of the CU and the matching result of DUs and resource blocks, and finally achieve stable bilateral matching. The spectrum allocation scheme of the invention is simple and practical, and has good application prospects.

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, especially a QoE-oriented double-layer matching game method in a 5G mixed scene. 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, large connections with low power consumption, and low latency and high reliability. customized business needs. At the same time, the current wireless resources are increasingly scarce, so the research on wireless resource manageme...

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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