arrow
Return

A distributed congestion avoidance routing algorithm in mega-constellation network with multi-gateway

delete2019-09-01
delete49
PRE
AI
Q
Quan Chen *
X
Xiaoqian Chen
L
Lei Yang
S
Shuai Wu
X
Xuefeng Tao
DOI:10.1016/j.actaastro.2019.05.051delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
Recently several large-scale constellation networks have been proposed, requiring inter-satellite links and multiple gateways to be equipped. The gateway assignment and traffic congestion avoidance issues are of fundamental importance for the network. In this work, we establish the network model for mega-constellation network with multi-gateway by introducing the concept of satellite router and satellite gateway. We propose a distributed routing algorithm consisting of three processes: 1) Gateway assignment; 2) Path candidate region partitioning and 3) Optimal path generation. In Optimal path generation, Longer Side Priority (LSP) strategy is proposed, aiming at maximizing the path searching space. By solving the path survival problem, LSP strategy is proved to perform better in congestion avoidance. Through simulation, we verify the routing algorithm and find the significant effects of seam movement in network performance. Results suggest that the proposed strategy performs better in load balance and congestion avoidance compared with the minimum delay strategy.
Keywords:
Load balancing
Mega-constellation network
Routing
Congestion avoidance
Multiple gateways
AI Summary

AI Summary

Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Acta Astronautica cover
Acta Astronautica
IF:
3.4
Papers:
1.1W
Citations:
2.1W

Organization

S
Space Engineering University
Scholars:
1.0K
Papers: 674
Citations: 500
N
national university of defense technology - china
Scholars:
1.8W
Papers: 1.4W
Citations: 9