Distributed wireless network trusted routing establishing method based on information theory

Abstract

The invention provides a distributed wireless network trusted routing establishing method based on an information theory. In each node period in a distributed wireless network, successful forwarding probabilities of neighbor nodes in a one-hop range are subjected to statistics, and trust measurements of the neighbor nodes are calculated. In a process that a source node initiates a routing request and a target node carries out routing reply, a node on a path converges trust measurement values of the neighbor nodes, which are subjected to statistics by the node, to the source node, the source node modifies a trust measurement of a common node on the path by adopting a method based on a capacity region, and finally, a path with the optimal trust measurement is selected to establish a routing. According to the distributed wireless network trusted routing establishing method based on the information theory, which is provided by the invention, nodes at different topology positions in a network further carry out accurate modification after acquiring trust measurements of relay nodes on the path so as to differently select the optimal trusted path and avoid congestion caused by a case that service grouping is centralized to a certain relay node. According to the invention, when the trust measurement of the routing is considered, load balance of the network is also considered, so that end-to-end performance of the network is promoted.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method for establishing a trusted route in a distributed wireless network. Background technique [0002] Trusted network is a hotspot in the research of next-generation network, which aims to deal with major challenges such as security and service quality assurance through "active defense". Ad Hoc networks are widely used in military, disaster relief and other fields because of their decentralization, independent of infrastructure, and self-organization. However, there are still many problems in Ad Hoc networks in terms of security and reliability. For Ad Hoc networks The research on trustworthy technology has practical application value, and the research on trust measurement model is its foundation and key. [0003] The current trust measurement models mainly include ① trust measurement calculation model based on interaction context, ② trust measurement model bas...

AI Technical Summary

Problems solved by technology

These measurement models have their own shortcomings. First, they lack flexibility and assume various assumptions in the modeling process, making the model less adaptable to specific networks.

Secondly, it is mainly designed for centralized networks. For distributed Ad Hoc network multi-hop communication, it lacks good adaptability to complex topological structures, which affects the usability of the model.

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