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Transmitting power control method with energy efficiency optimization guaranteeing service quality based on Brent method in D2D (Device-to-device) communication

A transmission power control and transmission power technology, applied in the field of D2D communication, can solve problems affecting the communication quality of cellular network users

Active Publication Date: 2015-06-03
ZHEJIANG UNIV OF TECH
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  • Application Information

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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.

Method used

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  • Transmitting power control method with energy efficiency optimization guaranteeing service quality based on Brent method in D2D (Device-to-device) communication
  • Transmitting power control method with energy efficiency optimization guaranteeing service quality based on Brent method in D2D (Device-to-device) communication
  • Transmitting power control method with energy efficiency optimization guaranteeing service quality based on Brent method in D2D (Device-to-device) communication

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Embodiment Construction

[0082] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0083] refer to figure 1 , an energy-efficient transmit power control method with guaranteed quality of service based on the Brent method in D2D communication, the implementation of this method can ensure the quality of service of users in the system, through the cellular network users in the system and D2D communication The optimal control of the transmit power of the user achieves the goal of maximizing the energy efficiency of the D2D communication user. The D2D communication in the system can effectively reduce the load of the base station, increase the spectrum utilization rate, and alleviate the problem of lack of spectrum resources in the wireless communication system. Aiming at an energy efficiency optimized power control method for guaranteeing service quality in D2D communication, the control method includes the following steps:

[0084] (1) In D2...

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Abstract

A transmitting power control method with an energy efficiency optimization guaranteeing service quality based on a Brent method in a D2D (Device-to-device) communication comprises the following steps: (1) achieving an objective of energy efficiency optimization of a D2D communication user on the premise of guaranteeing the service quality by controlling transmitting power of the D2D communication user and a cellular network user and modeling the issue accordingly, (2) equivalently converting an optimization issue P1 related to control of the transmitting power of the D2D communication user and the cellular network user to an optimization issue P2 only related to the transmitting power of the D2D communication by a method of introducing an auxiliary variable, and (3) converting the optimization issue P2 into an optimization issue P3 via analysis, and solving the optimization issue P3 by using a golden ratio search and quadratic interpolation algorithm. The method considers power consumption of a basic circuit of a transmitter, optimizes use efficiency of user energy and increases a resource utilization rate.

Description

technical field [0001] The present invention relates to the field of D2D communication, in particular to an energy efficiency optimized transmission power control method based on the Brent method in D2D communication with guaranteed service quality. Background technique [0002] With the blowout growth of people's demand for data, when the distance between users is close enough, the mode of D2D direct communication can be realized by multiplexing the resources of cellular network users. Energy efficiency and next-generation wireless network efficiency optimization 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 to be able to control the interference between cellu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/26H04W52/36H04W52/38
CPCH04W4/70H04W52/26H04W52/36H04W52/383
Inventor 吴远陈佳超何艳飞钱丽萍
Owner ZHEJIANG UNIV OF TECH