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Virtual subnet partition method based on node reputation in MANET (mobile ad hoc network)

A virtual subnet and node technology, applied in wireless communication, network topology, electrical components, etc., can solve problems such as low efficiency and complex implementation

Inactive Publication Date: 2011-03-16
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to provide data isolation of different service levels and a secure routing scheme to overcome the shortcomings of complex implementation and low efficiency of existing technologies, realize secure communication between mobile nodes in MANET, and improve the overall security performance of the network

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  • Virtual subnet partition method based on node reputation in MANET (mobile ad hoc network)
  • Virtual subnet partition method based on node reputation in MANET (mobile ad hoc network)
  • Virtual subnet partition method based on node reputation in MANET (mobile ad hoc network)

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Embodiment Construction

[0038] The method of the present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0039] The present invention defines the following symbols and concepts:

[0040] The network node identifier adopts a triplet (P, V, M), where P is the number of the physical subnet, V is the number of the virtual subnet, M is a random number, the physical subnet of the node s is marked as s.P, and the virtual subnet where the node s is located is marked as s.P. The network is marked as s.V, and the node / data security level is divided into N categories (V=1, 2, ..., N), and N=4 in the present invention.

[0041] Cre(i): the reputation value of node i, its security level is INT(N*Cre(i));

[0042] Nei(i): the set of neighbor nodes of node i;

[0043] Eva(i, j): the reputation evaluation of node i to node j;

[0044] Dis(i, j): the distance between nodes i and j, that is, the minimum routing hops;

[0045] Zon(r): The distance between the n...

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Abstract

The invention discloses a virtual subnet partition method based on node reputation values in a mobile ad hoc network, provides the mapping relation between node security levels and the reputation values, provides a secure routing scheme based on physical subnets plus virtual subnets and aims at realizing isolation of data with different service levels and information sharing among nodes with different security levels. The technical scheme is as follows: carrying out physical subnet partition according to a network topological structure, then initiating the calculation of the node reputation values from the cluster head and further generating the virtual subnets. The active routing way is adopted in the physical subnets, the on-demand routing way is adopted in the virtual subnets, and the isolation of malicious nodes from selfish nodes is realized by updating the node reputation values. By adopting the method, the security and the confidentiality of information transfer in the mobile ad hoc network can be improved.

Description

technical field [0001] The invention relates to the isolation control and security protection of node data of different security levels in a mobile ad hoc network (Mobile Ad Hoc Network, MANET), in particular to an isolation control method using a virtual subnet based on reputation. Background technique [0002] MANET originated from military applications. After years of research and development, its application targets have been expanded to civilian fields such as home networks and personal wireless mobile communications. Ad hoc network is a wireless communication network composed of a group of mobile nodes with wireless transceiver devices. It does not depend on the preset infrastructure and is temporarily established. When not within the communication range of each other, other intermediate nodes can be used to forward information to complete multi-hop communication, so it is also called packet wireless network or multi-hop network. Mobile nodes and data in MANET have di...

Claims

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Application Information

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IPC IPC(8): H04W12/00H04W40/02H04W84/18
Inventor 张剑朱丽娜冯力张毅张焕
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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