Backup relay auxiliary decision-making method and system based on optimal position estimation

Abstract

The invention discloses a backup relay auxiliary decision-making method and system based on optimal position estimation. The method comprises the following steps: enabling each node to receive network sensing information periodically sent by adjacent nodes; and judging whether an original auxiliary synchronization optimal node is effective or not according to the received network sensing information, calculating a network distance according to the network sensing information, screening out an optimal position node as a backup relay by utilizing the minimum network distance, dynamically optimizing the auxiliary synchronization node again on the backup relay by adopting time quality, and carrying out role change under the condition of failure of the main relay so as to maintain continuous and wide-area coverage of the distributed peer-to-peer network.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a backup relay auxiliary decision-making method and system based on optimal position estimation. Background technique [0002] The future-oriented data link network requires a mobile and flexible deployment method, which closely combines mobility, flexibility, modularization and networking to form a self-organizing and self-organizing network capable of rapid access and quick response (down to s-level). Configuration and self-healing automatic networking capabilities. [0003] Typical application scenarios of self-healing networking include: multi-hop network coverage under large coverage radius, blind-filling communication coverage under complex terrain conditions, stubborn networking under confrontational conditions and beyond line-of-sight transmission. These harsh communication environments pose severe challenges to the survivability and robustness of data lin...

AI Technical Summary

Problems solved by technology

When the network topology is highly dynamic, the dynamic routing technology has disadvantages such as slow convergence speed and high protocol overhead.

In particular, when the network scale increases, the overhead of dynamic routing protocols will become a bottleneck limiting the expansion of the network scale

[0008] In the data link network, the pre-allocated backup relay nodes cannot effectively cope with the dynamic changes of node locations and network topology, and there are two disadvantages: On the one hand, under the conditions of dynamic changes in the network coverage area and node locations, the pre-allocated backup The relay node may move to the edge of the network, making the pre-assigned backup relay unsuitable for the relay role; on the other hand, under network confrontation conditions, the pre-allocated backup relay node may fail, resulting in the backup relay role not being able to assume the role in time , leading to holes in the network topology

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