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Smart grid MAC layer multi-service performance analysis method based on Markov model

A smart grid and analysis method technology, applied in the direction of electrical components, data exchange network, digital transmission system, etc., can solve problems such as IEEE802.11s wireless Mesh network that has not been really studied

Active Publication Date: 2016-01-13
CENT SOUTH UNIV
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Problems solved by technology

[0004] However, most of the current researches only improve the performance of the smart grid by improving the routing protocol, but do not really study whether the IEEE802.11s wireless Mesh network can well guarantee the different needs of the neighbor area network of the smart grid.

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  • Smart grid MAC layer multi-service performance analysis method based on Markov model
  • Smart grid MAC layer multi-service performance analysis method based on Markov model
  • Smart grid MAC layer multi-service performance analysis method based on Markov model

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Embodiment Construction

[0095] In order to describe in more detail a Markov model-based smart grid MAC layer multi-service performance analysis method proposed by the present invention, the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0096] A Markov model-based MAC layer multi-service performance analysis method for smart grids. By establishing and analyzing a three-dimensional Markov model, combining hidden terminals and QoS requirements of different service flows to analyze the back-off process of each service flow, and analyzing each service flow MAC layer throughput, end-to-end delay and other performance, the specific method includes the following steps:

[0097] Step 1, establish three-dimensional Markov model;

[0098] Based on EDCA mechanism, use figure 1 The three-dimensional Markov model shown analyzes the state of the i-th business flow in the smart grid, where i=0,1,2,3. make p i is the collision probability of the i-t...

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Abstract

The invention provides a smart grid MAC layer multi-service performance analysis method based on a Markov model. The method mainly comprises the steps that 1) an EDCA mechanism is realized in the MAC layer on the basis of IEEE802.11s, the new 3D Markov model is provided to analyze the states of service flows of different priorities of the smart grid, and the model includes the whole process from an unsaturated state to a saturated state; 2) in the multi-hop wireless Mesh network, the channel contention performance of services of different priorities in nodes is greatly reduced due to interference of a hidden terminal in the nodes, and thus, the back-off processes of the different service flows in the EDCA mechanism are analyzed by considering the hidden terminal and the QoS requirements of the different service flows in the smart grid comprehensively according to the provided Markov model; and 3) the back-off processes of the different service flows are combined to analyze the MAC-layer performances, as the average throughput and average end-to-end time delay, of the different service flows. The method provided by the invention can provide theoretical guidance for the wireless Mesh network that satisfy different QoS requirements of the smart grid.

Description

technical field [0001] The invention belongs to the technical field of smart grid and wireless communication, and in particular relates to a Markov model-based MAC layer multi-service performance analysis method of smart grid. Background technique [0002] Smart Grid (SmartGrid, SG) is a fully automated power transmission network that can monitor and control each user and grid node, ensuring the two-way flow of information and power between all nodes in the entire transmission and distribution process from power plants to end users . It aims to fully meet users' demand for electricity and optimize resource allocation, ensure the safety, reliability and economy of power supply, meet environmental protection constraints, ensure power quality, and adapt to the development of power market, etc., to achieve reliable and economical power for users. , clean, interactive power supply and value-added services. [0003] With the research and construction of smart grid, the requireme...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/14
Inventor 邓晓衡和莉芳桂劲松曾志文
Owner CENT SOUTH UNIV
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