Energy efficiency optimization transmitting power control method with quality-of-service guarantee in D2D communication

Abstract

An energy efficiency optimization transmitting power control method with quality-of-service guarantee in D2D communication comprises the following steps: (1) achieving the goal of D2D communication user energy efficiency optimization under the premise of guaranteeing the quality of service through control on the transmitting power of D2D communication users and cellular network users, and modeling the problem on the basis; (2) equivalently converting an optimization problem P1 involving transmitting power control on the D2D communication users and the cellular network users into an optimization problem P2 only involving the transmitting power of the D2D communication users by introducing auxiliary variables; and (3) converting the optimization problem P2 into an optimization problem P3 through analysis, and solving the optimization problem P3 by a one-dimensional linear search algorithm with hierarchical thinking. The invention provides an energy efficiency optimization power control method with quality-of-service guarantee in D2D communication, which can effectively reduce the load of a base station, increase the spectrum utilization rate, and alleviate the problem of spectrum resource scarcity of a wireless communication system.

Description

technical field [0001] The present invention relates to the field of D2D communication, in particular to an energy efficiency optimized power control method with service quality guarantee in D2D communication. Background technique [0002] With people's increasing demand for data information in the network, when the distance between mobile phone users is close enough, the mode of D2D direct communication can be realized by multiplexing the resources of cellular network users. Development prospects, especially in terms of improving energy efficiency and optimizing the efficiency of next-generation wireless networks, are worth looking forward to. However, during the D2D communication process, the D2D communication users reuse resources for the cellular network users in the network, which will inevitably cause interference and affect the communication quality of the cellular network users. In order to take full advantage of the advantages of D2D communication, it is necessary ...

AI Technical Summary

Problems solved by technology

However, during the D2D communication process, the D2D communication users reuse the resources of the cellular network users in the network, which will inevitably cause interference and affect the communication quality of the cellular network users.

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