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Topology sensing method, device and system for non-cooperative wireless network

A wireless network, non-cooperative technology, applied in the field of communication, which can solve the problems such as the inability of related methods to work, limited information, and inability to control the data flow of the target network.

Active Publication Date: 2021-08-31
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Claims
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Problems solved by technology

This is because non-cooperating parties lead to limited and unreliable information available to the sensing party, and the inability to control the target network data flow also means that related methods based on network protocols cannot work

Method used

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  • Topology sensing method, device and system for non-cooperative wireless network
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  • Topology sensing method, device and system for non-cooperative wireless network

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Embodiment Construction

[0072] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0073] see figure 1 , the implementation scenario of the present invention involves a target network and a sensing network, wherein the target network is composed of several nodes, has a certain topology but is unknown, and the sensing network is composed of a sensing device and an analysis device, and the sensing device senses the target network and performs data preprocessing, It is then transmitted to an analysis device for topology inference.

[0074] see figure 2 , a non-cooperative wireless network-oriented topology sensing method of the present invention, according to the sending time of the signal and the serial number of the sending node, performs correlation detection on the nodes, analyzes the communication relationship of the target network, thereby obtaining the topology structure, specifically including:

[0075] Step 1: Obtain...

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Abstract

The invention discloses a topology sensing method, device and system for a non-cooperative wireless network. The topology sensing method comprises the steps of: acquiring a node serial number and a sending moment of a target network for sending data in a period of time through a signal detection mechanism, and forming a data matrix; carrying out Granger causality hypothesis testing on every two data matrixes, solving a mean value of Granger causality zero distribution by utilizing a time window method, and screening as a threshold value to obtain a potential neighbor set of the nodes; and carrying out conditional Granger causality hypothesis testing according to the data matrix and the potential neighbor set grouping, solving a mean value of conditional Granger causality zero distribution by using a time window method, and screening as a threshold value to obtain a final neighbor set of the nodes, thereby realizing topology perception. According to the topology sensing algorithm based on conditional Granger causality, the communication relation can be inferred according to the signal sending data matrix under the condition that the data packet is not decoded, network topology information can be accurately reasoned, and topology reasoning can be carried out by utilizing sensing information.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a non-cooperative wireless network-oriented topology sensing method, device and system. Background technique [0002] Topology awareness refers to the perception of the target network's spectrum data, communication timing and other information to infer the topology of the network to guide subsequent battlefield decisions. Network topology information is an extremely important high-level semantic reasoning of the network. Accurately identifying the enemy's network topology on the battlefield can understand the overall situation of the enemy's network, which is conducive to the implementation of strategic decisions; at the same time, it can be further identified on the basis of network topology. The key nodes and links of the network can be precisely interfered with, or assist battlefield resource management decisions. [0003] However, there are still great chal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/12H04L41/142H04L41/145
Inventor 刘子彤王威吴启晖
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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