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Energy Efficient Resource Optimization Method Based on Unary Cubic Equation Root Finding and Hungarian Algorithm

A Hungarian algorithm and resource optimization technology, applied in the field of energy efficiency optimization of cellular system terminal direct technology, can solve problems such as reducing the data transmission rate between communications and enhancing cellular link interference

Active Publication Date: 2016-02-24
白盒子(上海)微电子科技有限公司
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Problems solved by technology

[0002] At present, in order to solve the shortage of spectrum resources and increase the communication rate, people generally adopt D2D (device-to-device) technology with high speed and low power consumption, that is, the direct communication technology of cellular terminals, but D2D technology enhances the interference of cellular users to D2D users. and D2D users interfere with the cellular link, thereby reducing the data transmission rate between communications

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  • Energy Efficient Resource Optimization Method Based on Unary Cubic Equation Root Finding and Hungarian Algorithm
  • Energy Efficient Resource Optimization Method Based on Unary Cubic Equation Root Finding and Hungarian Algorithm
  • Energy Efficient Resource Optimization Method Based on Unary Cubic Equation Root Finding and Hungarian Algorithm

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Such as figure 1 Shown is a cellular system terminal pass-through technology energy efficiency optimization method based on the root of the unary cubic equation and the Hungarian algorithm. The mathematical model of the energy efficiency function corresponding to this part of the rate gain brought by the introduction of D2D under the cellular network is established. The rate gain takes into account the interference to cellular users after the introduction of D2D (the rate of D2D users minus the rate loss of cellular users caused by the introduction of D2D users); through fractional programming, the original problem is decomposed into two-layer optimization problems, in the first In the first-level optimization problem, the problem of solving the minimum value of the function is finally reduced to the problem of solving the root of a one-dimensional cubic equatio...

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Abstract

The invention discloses a high-energy-efficiency resource optimization method based on one unknown quantity cubic equation rooting and a Hungary algorithm. The method comprises the following steps of establishing a mathematical model of an energy efficiency function which corresponds to rate gain brought when D2D (device-to-device) is introduced into a cellular network, wherein the rate gain considers interference to cellular users after the D2D is introduced (the interference refers to the rate of a D2D user subtracting from the rate loss of the cellular user caused by introduction of the D2D user); and decomposing a primal problem into a two-level optimization problem through fractional programming, wherein the problem of solving the minimum value of a function is finally resolved into a problem of solving the root of an one unknown quantity cubic equation in the first-level optimization problem, and the corresponding solution is solved under three different conditions; the collision problem during resource allocation is solved by virtue of the Hungary algorithm and the resource allocation is finished in the second-level optimization problem. According to the method provided by the invention, the energy efficiency, which corresponds to the rate gain brought by introduction of D2D under the cellular network, can be improved, and the requirements on environment-friendly communication and prolonging of the service life of a mobile terminal battery are met.

Description

technical field [0001] The invention relates to mobile communication resource allocation and power control technology, in particular to an energy efficiency optimization method for cellular system terminal direct connection technology based on unary cubic equation root finding and Hungarian algorithm. Background technique [0002] At present, in order to solve the shortage of spectrum resources and increase the communication rate, people generally adopt D2D (device-to-device) technology with high speed and low power consumption, that is, the direct communication technology of cellular terminals, but D2D technology enhances the interference of cellular users to D2D users. and D2D users interfere with the cellular link, thereby reducing the data transmission rate between communications. [0003] With the increasing attention of people on green communication, how to improve the energy efficiency of D2D system through resource allocation and power control is an urgent problem to...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04H04W72/04
Inventor 蒋雁翔刘强尤肖虎
Owner 白盒子(上海)微电子科技有限公司
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