Intelligent utility network transmission packet error rate measuring and calculating method for establishing data packet collision model on basis of probability theory
A collision model and public utility technology, applied in the information field, can solve problems such as only considering the characteristics of the bit error rate of the system, not considering the data packet transmission mode, and it is difficult to give the control accuracy of smart grid communication transmission, so as to achieve improved accuracy and high The effect of control precision
Inactive Publication Date: 2014-04-02
HARBIN INST OF TECH
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[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 expect...
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[0030] Specific embodiment one: in this embodiment, a kind of method for measuring and calculating the packet error rate of intelligent utility network transmission based on probability theory to establish a data packet collision model, its specific steps are as follows (such as Image 6 shown):
[0031] Step A, establish a SUN packet collision model;
[0032] Step A1, establishing a SUN internal interference analysis network topology model; as figure 1 As shown, the expected packet from the transmitter Tx v Transmit to receiver Rx v , the transmission distance is d D ;Tx to transmitter v The circle with the center of the circle represents the maximum range of the node’s signal transmission. Other nodes inside the circle can communicate with this node, but the nodes outside the circle cannot. Similarly, with the receiver Rx v The circle with the center of the circle represents the maximum communication range of the node. Each node in the network has the same maximum com...
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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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Inventor 陈舒怡马若飞陈晓华孟维晓
Owner HARBIN INST OF TECH
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