An Adaptive Routing Algorithm for Distributed Nodes in Leo Satellite Networks

Abstract

The invention discloses a distributed node self-adaptive routing algorithm for LEO satellite network. Its technical characteristics are: constructing a grid-like LEO satellite communication system similar to the Iridium constellation; , using the mesh topology of the satellite constellation, each satellite node is independently responsible for forwarding the data packets in the queue; by adding and transmitting additional network status information in the datagram, the satellite nodes can realize the awareness of the network status in different routing directions And predict, and then guide the selection of data reported to the link. The present invention is reasonable in design, and its determined self-adaptive multi-path routing mechanism balances flow through load balancing means to avoid congestion, and is applied to low-orbit Iridium constellation satellite network systems, and the network performance index is superior to other traditional routing algorithms; especially in Under the premise of a small increase in the number of routing hops, the network load balance can be significantly improved, and the performance of the algorithm is better than that of the traditional algorithm.

Description

technical field [0001] The invention belongs to the technical field of satellite network routing, and specifically relates to a distributed node adaptive routing algorithm for LEO satellite networks according to the state of the inter-satellite link and the load situation of the network nodes, and each satellite node is independently responsible for forwarding the data in the queue By adding and transmitting additional network status information in datagrams, individual nodes can perceive and predict network status in different routing directions, and then guide the selection of outbound links for datagrams to achieve network load balancing and performance optimization. Adaptive multipath routing algorithm. Background technique [0002] Starting with the Intelsat-1 practical commercial communication satellite, after nearly half a century of development, the communication satellite has become the space spacecraft with the largest number in orbit. Various communication satelli...

AI Technical Summary

Problems solved by technology

Existing solutions are not very adaptable, and do not fully consider the problem of unbalanced network application scenarios and traffic distribution. They have strict requirements on the computing performance, storage capacity, and transmission and reception capabilities of satellite systems, and have strict requirements on satellite node reliability and network resistance. Destructively oversimplified neglected or optimistic scenario assumptions

Images