Byzantine failure tolerance method for improving reliability of wireless Mesh backbone network

Abstract

The invention provides a Byzantine failure tolerance method for improving reliability of a wireless Mesh backbone network. The method comprises search and establishment of a Byzantine unit, data backup and failure tolerance. A Byzantine algorithm provided by the application improves the conventional routing protocol, and selects corresponding node data information to perform backup aiming at network attack behaviors of different conditions or abnormal conditions of nodes. When the attack behaviors occur, certain information of the attacked nodes is tampered, or pseudo nodes appear in the network and the nodes are subjected to human failure, the routing protocol fused into the Byzantine principle can acquire accurate node information by judging the backup information of other nodes in the Byzantine unit of the abnormal nodes so as to suppress interference, enhance the failure tolerance capability of the network and promote the reliability of the wireless Mesh backbone network.

Description

technical field [0001] The invention relates to the field of wireless network technology and the field of trusted computing, in particular to a Byzantine fault-tolerant strategy for improving the reliability of a wireless Mesh backbone network. Background technique [0002] Wireless Mesh Network (WMN for short) is a new type of network structure based on multiple routes and supporting multipoint-to-multipoint technology researched and developed on the basis of mobile Ad hoc network. With the characteristics of management, automatic repair, self-balancing, and mobile broadband, it is a large-capacity, high-speed, and wide-coverage network that can become an effective means of broadband access. Its characteristics of low initial investment, gradual deployment, easy maintenance, robust network and reliable service range will help the wireless mesh network become one of the core communication networks in the future. [0003] The good development prospect of wireless Mesh networ...

AI Technical Summary

Problems solved by technology

This fact is also a common and important weakness in the routing protocols of wireless Mesh networks and Ad hoc networks, because malicious nodes can generate wrong routing information to change the direction of routing or simply truncate routing.

In addition, the attacker can mislead the routing by attacking the routing protocol, resulting in the collapse of the network

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