Space-air-ground network mobility management architecture based on blockchain cross-chain technology

Abstract

The invention discloses a space-air-ground network mobile management architecture based on a blockchain cross-chain technology. A blockchain is established for each network, a Byzantine fault-tolerantconsensus mechanism is utilized to establish the blockchain, equipment with strong capability and trustworthiness is used as a verifier to serve as a full node, and other equipment communicates withthe verifier and joins in the network in the identity of a light node. In order to encourage all airplanes and satellites to actively participate, reverse Vickrey-Clarke-Groves mechanism auction is simulated, so that the system efficiency is improved to the maximum extent. Block chain cooperation is realized by using a side chain / relay chain technology, and the determined price is securely transmitted to a target network. The blockchain can effectively prevent each node from breaking down, and can also prevent attacks for each network server. Through block chain cooperation, the information transmitted across the block chains is tamper-proof and audible. The blockchain can independently and privately maintain in-segment management. The cooperative block chain supports the inter-segment interconnection of the space-air-ground network to adapt to the dynamic network at low cost.

Description

technical field [0001] The present invention relates to the field of electronic information technology, in particular to an air-space-ground network mobility management framework based on blockchain cross-chain technology. Background technique [0002] Space-air-ground integrated network (space-space-ground network) is an integrated network designed to provide better service quality to users, which is three-dimensionally interconnected by space network, sky network and ground network. However, in practice, there are still some problems to be solved. For example: each network operates independently of each other, and it is difficult to carry out comprehensive construction of each network, so that the network cannot provide effective network services in time. Moreover, with the large-scale application of the space-space-ground network, more and more untrusted devices are added to the space-space-ground network, which poses a threat to the security and privacy of the space-spa...

AI Technical Summary

Problems solved by technology

[0004] However, when the air-space-ground network is applied on a large scale, the traditional centralized management organization will not only reduce the flexibility and scalability of the system due to the distrust between network service providers and various certifications

Moreover, a single blockchain generally processes user requests sequentially, which will cause very serious delays

In addition, each node of the blockchain must keep a complete copy of the entire blockchain, which also wastes a lot of storage resources

Not only that, each space-space network has its own characteristics, and it is difficult to build a blockchain that can satisfy the three networks at the same time. For example, in the space network, the satellites move fast and the bandwidth is limited, which makes the scalability of the blockchain The problem has become the most challenging problem; in the sky network, the equipment capacity is limited, the network link is unstable, and the heterogeneity and high mobility of various aircraft make the communication very complicated; in the ground network, there are many kinds of network services and equipment, requiring Blockchain has high throughput

This makes blockchain collaboration a feasible way out. However, in reality, blockchain focuses on the application in a single network, and lacks an incentive mechanism to encourage users of various network segments to participate.

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