Multi-QoS objective optimization routing algorithm of satellite network based on SDN

被引：4

作者：

Shi X. ^{[1
]}

Li Y. ^{[1
]}

Zhao S. ^{[1
]}

Wang W. ^{[1
]}

Wang X. ^{[1
]}

机构：

[1] Information and Navigation College, Air Force Engineering University, Xi'an

来源：

Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2020年 / 42卷 / 06期

关键词：

Quality of service (QoS); Routing algorithm; Satellite network; Software-defined networking (SDN);

D O I：

10.3969/j.issn.1001-506X.2020.06.25

中图分类号：

学科分类号：

摘要：

The diversification of service types in traditional satellite networks leads to complex network configuration and quality of service (QoS) cannot be effectively guaranteed. The satellite network architecture based on software-defined networking (SDN) is studied, and an adaptive routing algorithm that can meet a variety of QoS requirements is proposed. Firstly, a routing optimization model of SDN satellite network with multiple constraints is established. Then the model is relaxed by Lagrange relaxation method. Finally, the gradient method is used to solve the problem iteratively and to search for the optimal path to satisfy the bandwidth, latency, packet loss rate. The research results show that the optimization algorithm improves QoS satisfaction by 64% compared with low-earth-orbit satellite routing algorithm (LSRA), and improves latency satisfaction and packet loss rate satisfaction by 28% compared with software-defined routing algorithm (SDRA). © 2020, Editorial Office of Systems Engineering and Electronics. All right reserved.

引用

页码：1395 / 1401

页数：6

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