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A hybrid energy-powered random resource allocation method for wireless cooperative network

A collaborative network and mixed energy technology, applied in wireless communication, energy consumption reduction, advanced technology, etc., can solve the problem of inability to effectively control system data transmission delay time, network utility, etc.

Active Publication Date: 2018-12-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method for randomly allocating resources in a wireless collaborative network powered by mixed energy, so as to solve the problem that the wireless collaborative network cannot effectively control the delay time of system data transmission under the condition of powered by mixed energy. The problem of maximizing network utility

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  • A hybrid energy-powered random resource allocation method for wireless cooperative network
  • A hybrid energy-powered random resource allocation method for wireless cooperative network
  • A hybrid energy-powered random resource allocation method for wireless cooperative network

Examples

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Embodiment 1

[0077] refer to figure 1 , the present embodiment provides a method for randomly allocating resources in a wireless collaborative network powered by hybrid energy, including steps:

[0078] S1: Obtain the system status information of the wireless collaborative network, analyze and obtain the long-term average optimization problem in the wireless collaborative network, and establish an optimization model for the long-term average optimization problem;

[0079] S2: Convert the long-term average optimization problem into a plurality of single-slot sub-problems through preset optimization theory;

[0080] S3: Analyzing and solving the sub-problems to obtain an optimal resource allocation scheme;

[0081] S4: Update the system state of the wireless collaborative network according to the optimal resource allocation scheme.

[0082] In this embodiment, there is 1 source node, N relay nodes and K destination nodes in the wireless collaborative network, network data is sent from the ...

Embodiment 2

[0138] This embodiment utilizes Matlab to carry out simulation on the basis of embodiment one, and obtains corresponding experimental result, can refer to Figure 2 to Figure 6 .

[0139] In this embodiment, the wireless collaborative network consists of 1 source node, 10 relay nodes and 25 destination nodes, wherein the distance between the source node and the destination node is 10 to 20 meters, and the maximum distance between each relay node Transmission power p max =40W, the total system bandwidth W is 100MHZ, evenly divided into X=32 orthogonal channels, channel gain Uniformly distributed in [5,14] and subject to independent and identical distribution, the noise power is N 0 =10 -10 W / HZ, the maximum channel capacity is r max =20Mbps, the weight factor is 1 / 32, the electricity price of the grid satisfies the normal distribution N(3,3), the electricity that the relay node can collect from the environment satisfies a uniform distribution in [0,90], ρ=1, The maximum ...

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Abstract

The invention provides a method for randomly allocating wireless cooperative network resources with mixed energy supply. The method comprises the following steps: S1, acquiring system state information of the wireless cooperative network, analyzing and obtaining a long-term average optimization problem in the wireless cooperative network, and establishing an optimization model for the long-term average optimization problem; S2, obtaining the system state information of the wireless cooperative network. 2, converting the long-term average optimization problem into a plurality of sub-problems ofa single time slot by a preset optimization theory; 3, analyzing and solving that sub-problem to obtain an optimal resource allocation scheme; S4: updating the system status of the wireless cooperative network according to the optimal resource allocation scheme. By collecting the green energy of the environment and supplying the energy to the wireless cooperative network system through the mixedenergy, the invention not only achieves the purpose of saving energy, but also ensures the stability of the data transmission of the system, ensures the worst transmission delay of the system data, and optimally distributes the system resources according to the real-time system state.

Description

technical field [0001] The present invention relates to the technical field of computer network communication, in particular to a method for randomly allocating resources of a wireless cooperative network powered by mixed energy. Background technique [0002] Wireless cooperative network (Wireless Cooperative Network) introduces relay nodes to assist the communication between the source node and the destination node. Because it can increase the transmission range, improve system capacity, reliability and energy efficiency, it has been favored by the industry and the industry in recent years. close attention of the academic community. [0003] However, with the sharp increase in data traffic demand, the energy problem becomes more difficult. Energy harvesting (EH) technology provides a new idea for solving energy problems. Through EH, wireless devices can obtain green energy from the environment, such as Solar energy, wind energy, etc., thereby prolonging the life of the net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W72/04
CPCH04W24/02H04W72/53Y02D30/70
Inventor 陈志刚陈雪寒
Owner CENT SOUTH UNIV