Intelligent utility network transmission packet error rate measuring and calculating method for establishing data packet collision model on basis of probability theory

Abstract

The invention relates to an intelligent utility network transmission packet error rate measuring and calculating method for establishing a data packet collision model on the basis of the probability theory. The invention belongs to the technical field of information, relates to a method for calculating a wireless network data transmission packet error rate and solves the problem that when a plurality of interference sources start to send interference data packets in the transmitting process of expected data packets, due to uncertainty of a timing relation between the interference data packets and the expected data packets, an existing calculating method hardly gives the collision condition of the expected data packets and the interference data packets in each time period. According to the invention, one improved packet collision model is established by utilizing the probability theory principle; by segmenting the expected data packets according to the collision condition and then calculating an average length and a bit error rate of each segment, a packet error rate or an average packet error rate of an interfered node is obtained. The intelligent utility network transmission packet error rate measuring and calculating method is used for calculating the packet error rate in the SUN internal node interference regulated by the IEEE802.15.4g standard.

Description

technical field [0001] The invention belongs to the field of information technology, and relates to a method for measuring and calculating the packet error rate of intelligent utility network transmission by establishing a data packet collision model based on probability theory. Background technique [0002] A smart grid is a complex and sophisticated system that combines power, control and communication technologies to monitor and optimize the entire power transmission service from the power generation station to the end user. One of the main features of the smart grid is that it can conduct real-time two-way transmission of electric energy and various data information, so as to balance the supply of electric energy and the needs of users. The ubiquitous communication network supporting power transmission is the basis for realizing the intelligence of the power grid. As far as the current development of communication technology is concerned, the application of wireless com...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the existing packet error rate algorithm only considers the characteristics of the system bit error rate, does not consider the data packet transmission mode of the two systems, cannot accurately reflect the packet error rate performance of the system and when multiple interference sources are expected When the interference data packets are sent during the data packet transmission process, due to the uncertainty of the timing relationship between them and the expected data packets, it is difficult to give the collision between the expected data packets and the interference data packets in each time period through the existing calculation methods, resulting in the designed In order to solve the problem of low accuracy of smart grid communication transmission control, a method for calculating the packet error rate of smart utility network (SUN) transmission based on probability theory to establish a data packet collision model is provided. The specific method is carried out according to the following steps:

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