Safe positioning method of wireless sensor network
A wireless sensor and network security technology, applied in security devices, network topology, wireless communication, etc., can solve problems such as increased hardware cost, implementation complexity, large impact, collusion attacks, etc., to extend the network life cycle and save energy Overhead, the effect of resisting collusion attacks
A wireless sensor and network security technology, applied in security devices, network topology, wireless communication, etc., can solve problems such as increased hardware cost, implementation complexity, large impact, collusion attacks, etc., to extend the network life cycle and save energy Overhead, the effect of resisting collusion attacks
CN102123389AActive Publication Date: 2011-07-13CHANGZHOU ANKONG ELECTRICAL INFORMATION TECH
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[0049] The present invention will be further described below in conjunction with the accompanying drawings.
[0050] Such as figure 1 As shown, malicious nodes include intrusion nodes and compromised nodes. In the figure, the double-headed arrows represent the interaction between malicious nodes, and the one-way arrows represent the transmission of information. The intrusion node c1 can compromise the legitimate nodes d1 and f1 within its communication range, making them compromised nodes with the same malicious behavior, that is, randomly tampering with sent or forwarded data packets, or further compromising other legitimate nodes. If the compromised anchor node d1, the intrusion node c1 and the intrusion node g1 send wrong positioning information respectively, or the intrusion node c1 tampers with the positioning information from the legitimate node b1, then the sensor node a1 will not be able to complete accurate positioning. It can be seen that the collusion attack will s...
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The invention relates to a safe positioning method of a wireless sensor network, comprising three stages, namely a doubtful node recognition stage, a malicious node isolation stage and a node position safety calculation stage, wherein in the doubtful node recognition stage, anchor nodes are cooperated mutually, broadcast information packets in a hopping communication range, detect doubtful nodes according to whether the information packets are abnormal, and record ID (identification) information of corresponding doubtful nodes; in the malicious node isolation stage, the anchor nodes report the ID information of the doubtful nodes to a base station which is carried out safety level area division on the wireless sensor network and isolated malicious nodes; and in the node position safety calculation stage, as for the main anchor node and the auxiliary anchor nodes in areas with higher safety level preferably, the calculation of sensor nodes is finished by a passive positioning algorithmbased on time difference. In the safe positioning method, the malicious nodes are effectively detected and isolated, the influence of the malicious attack to the positioning process is reduced, the positioning accuracy is improved, the energy consumption for positioning is saved and the life cycle of the network is prolonged.
Description
technical field [0001] The invention belongs to the field of wireless multimedia sensor networks. Specifically, the invention relates to a method for safe positioning of a wireless sensor network, which gradually eliminates malicious nodes in the network and uses anchor nodes to precisely position sensor nodes. Background technique [0002] In recent years, with the development of micro-electromechanical systems, wireless communication and digital electronic technology, wireless sensor networks (WSN) have been widely used in military and civilian fields. The application of precise location information of sensor nodes to WSN has vital significance. At present, scholars have proposed many positioning algorithms for WSN, which are mainly divided into two categories: anchor node-based and non-anchor-based WSN node positioning algorithms, but in most applications, wireless sensor networks are deployed in unmanned areas. Even in harsh environments, the node positioning process is...
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Patent Timeline
13 Jul 2011
Publication
CN102123389A
- IPC
- H04W12/00; H04W64/00; H04W84/18; H04W12/122; H04W12/63
- CPC
- Y02B60/50; H04W4/023; H04W12/125; H04W12/122
- Inventors
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