Resource management method based on non-cooperative game in d2d communication

Abstract

The invention discloses a non-cooperative game-based resource management method in D2D communication, which mainly solves the problems of high power consumption and low frequency spectrum utilization in the prior art, which cannot meet the communication requirements of multiple intelligent terminals; the implementation scheme includes: 1. ) to set the simulation scene; 2) to set the constraints on the users according to the simulation scenario; 3) to construct the combined cost function of the non-cooperative game under the constraints to model the D2D users; 4) to adjust the cellular user power to get the cellular user Power vector; 5) D2D users perform a non-cooperative game based on cellular user power vectors to obtain a power matrix; 6) Judging the stability of the joint power matrix between D2D users and cellular users; 7) Determine user power and spectrum allocation based on the power matrix. The present invention reduces power consumption and improves spectrum utilization under the condition of realizing spectrum and power distribution at the same time, and can be used in D2D communication of 5G key technology.

Description

technical field [0001] The invention belongs to the field of communication technology, and relates to a resource allocation method, which can be used in D2D communication, a key technology of 5G, to improve spectrum utilization, reduce transmission delay in communication, reduce transmission power and increase information transmission rate. Background technique [0002] D2D communication means that the cellular system allows users with close physical locations to communicate directly under the control of the base station instead of being forwarded by the base station. This communication method can use scarce spectrum resources more efficiently, and has the advantages of low delay and low energy consumption due to the short communication distance. It is precisely because of the many advantages of D2D communication that it has received more and more attention both in the research field and in the industrial field. There are two working modes for D2D communication: dedicated m...

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Problems solved by technology

[0004] "Resource sharing optimization for device-to-device communication underlying cellular networks" published by C.-H.Yu et al. (IEEE Trans.Wireless Communication, vol.10, no.8, pp.2752–2763, Aug.2011. ) is a centralized method for resource management in D2D communication. This method considers maximizing the total throughput of the system while ensuring the QoS of cellular users. Its shortcoming is that the research scenario is relatively simple, and only a pair of D2D Scenarios where only one cellular user can be multiplexed

Not only the interference brought by D2D to CUE is controlled, but also the interference between D2D users is also controlled. The shortcoming is that it does not solve the problem of sub-channel allocation

[0007] None of the above solutions can meet the communication needs when spectrum resources are scarce in the case of multiple intelligent terminals

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