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Spectrum-energy efficiency balance method for double-layer ultra dense heterogeneous network based on stochastic geometry

An energy-efficient, random-geometry technology, applied in the field of wireless communications, can solve problems such as data traffic shortage and insufficient access points, and achieve good mobile user experience, balance, and system energy-spectrum efficiency

Active Publication Date: 2017-05-31
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a double-layer ultra-dense heterogeneous network spectrum-energy efficiency balance method based on random geometry, to solve the problems of insufficient access points and data traffic shortage caused by the increase of mobile users

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  • Spectrum-energy efficiency balance method for double-layer ultra dense heterogeneous network based on stochastic geometry
  • Spectrum-energy efficiency balance method for double-layer ultra dense heterogeneous network based on stochastic geometry
  • Spectrum-energy efficiency balance method for double-layer ultra dense heterogeneous network based on stochastic geometry

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Embodiment

[0034] The steps of the double-layer ultra-dense heterogeneous network spectrum-energy efficiency balance method based on random geometry are as follows:

[0035] Step 1. Construct a two-layer ultra-dense heterogeneous network using the Poisson point process in random geometry;

[0036] Step 1.1, build a two-layer downlink heterogeneous ultra-dense cellular network in area A, and the two layers are subject to the independent density of λ k The Poisson point process Φ k , wherein, when k=1, it is the micro base station layer, and when k=2, it is the macro base station layer;

[0037] Step 1.2, the mobile user obeys the density as λ u The Poisson point process Φ u ;

[0038] Step 2, based on the probability density function and probability generation function of the Poisson point process, the total throughput of the system is obtained;

[0039] Step 2.1, the transmit power of the k-th layer base station is p tk , the random channel gain h between the target user and the co...

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Abstract

The invention provides a spectrum-energy efficiency balance method for a double-layer ultra dense heterogeneous network based on stochastic geometry. The method comprises the following steps: step 1, constructing the double-layer ultra dense heterogeneous network by using a Poisson point process in the stochastic geometry; step 2, obtaining a total system throughput based on a probability density function and a probability generation function of the Poisson point process; step 3, obtaining a relation among spectrum efficiency, energy efficiency and network density of the overall system from the definitions of spectrum efficiency and energy efficiency; and step 4, obtaining a relation closed expression between the spectrum efficiency and the energy efficiency via the optimization theory. The method has the advantages: 1) the network coverage is enlarged, and the network capacity is improved; and 2) the density of the network can be effectively changed to realize spectrum-energy efficiency balance of the system. Therefore, the method has better mobile user experience, and provides an effective reference for 5G honeycomb deployment.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a random geometry-based double-layer ultra-dense heterogeneous network spectrum-energy efficiency balance method. Background technique [0002] In recent decades, new mobile communication devices have emerged and the number of mobile users has increased dramatically, which requires a large number of access points and data traffic for mobile users. [0003] The existing single-layer macro cell deployment technology has the following technical problems: small network capacity, large energy consumption, high cost, large equipment that is not convenient for mobile operation, and few access points provided, which cannot meet the growing needs of wireless communication systems. data flow requirements. [0004] The deployment of multi-layer ultra-dense heterogeneous networks has become a trend in the development of communication systems, and it also provides a reference ...

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Application Information

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IPC IPC(8): H04W16/18H04W16/22H04W28/08H04W52/24
CPCH04W16/18H04W16/22H04W28/08H04W52/241H04W52/244
Inventor 陈宏滨向兰华赵峰
Owner GUILIN UNIV OF ELECTRONIC TECH
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