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Power and time joint allocation method in D2D wireless power supply communication network

A communication network and wireless power supply technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as increasing power and time resource allocation, difficulty in solving problems, mutual interference between users, etc.

Inactive Publication Date: 2018-08-28
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Concurrent transmission will cause mutual interference between users, which increases the difficulty of solving power and time resource allocation problems

Method used

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  • Power and time joint allocation method in D2D wireless power supply communication network
  • Power and time joint allocation method in D2D wireless power supply communication network
  • Power and time joint allocation method in D2D wireless power supply communication network

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0050] According to the method for jointly allocating power and time in a D2D wireless power supply communication network provided by the present invention, the method includes the following steps:

[0051] Step 1: Build a D2D wireless power supply communication network;

[0052] Step 2: Based on the D2D wireless power supply communication network, calculate the energy absorbed by the D2D sending node, the SINR of the D2D receiving node and the achievable data transmission rate of the D2D user;

[0053...

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Abstract

The invention provides a power and time joint allocation method in a D2D wireless power supply communication network. The method includes the following steps: step 1, constructing a D2D wireless powersupply communication network; step 2, calculating the energy absorbed by a D2D transmission node, a signal to interference and noise ratio of a D2D receiving node, and an achievable data transmissionrate of D2D users based on the D2D wireless power supply communication network; step 3, deriving a coupling equation of the transmission power and information transmission time of the D2D users basedon the data transmission requirements of the D2D users; and step 4, performing joint iterative calculation on the transmission power and information transmission time of the D2D users based on the coupling equation and the energy constraints and time constraints of the D2D users. According to the method provided by the invention, multiple pairs of D2D users are allowed to perform communication atthe same time, the utilization rate of time resources can be improved, a method for jointly calculating the transmission power and transmission time of the D2D users can be proposed, and a guidance method can be provided for the resource allocation based on a concurrent transmission model in the D2D wireless power supply communication network.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, relates to a joint power and time allocation method in a D2D wireless power supply communication network. Background technique [0002] Device-to-Device (D2D) communication allows two close-distance users to directly establish a data transmission link without going through the base station and the core network, which can significantly improve spectrum efficiency, improve network throughput, and effectively ease transmission. Delay and ensure network fairness, so it is considered to be one of the key technologies to realize the next generation network. However, devices in traditional D2D networks are powered by a fixed power source and have a limited lifetime. In order to solve this bottleneck problem, energy harvesting (Energy Harvesting) is proposed as a solution. Energy harvesting enables devices to absorb energy from the surrounding environment, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/06H04W28/02H04W28/18
CPCH04W24/06H04W28/0221H04W28/0236H04W28/18
Inventor 沈宇祥蒋铃鸽何晨丁建峰
Owner SHANGHAI JIAO TONG UNIV
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