中国邮电高校学报(英文版) ›› 2019, Vol. 26 ›› Issue (3): 25-34.doi: 10.19682/j.cnki.1005-8885.2019.0015

• Wireless • 上一篇    下一篇

Joint multi-QoS and energy saving routing for LEO satellite network

高杨1,张勇1,,滕颖蕾2,王晋雄3   

  1. 1. 北京邮电大学
    2. 北京邮电大学PCN&CAD实验室
    3.
  • 收稿日期:2018-11-13 修回日期:2019-04-16 出版日期:2019-06-30 发布日期:2019-06-30
  • 通讯作者: 张勇 E-mail:yongzhang@bupt.edu.cn
  • 基金资助:
    中国国家重点研发计划

Joint multi-QoS and energy saving routing for LEO satellite network

    

  1.  
  • Received:2018-11-13 Revised:2019-04-16 Online:2019-06-30 Published:2019-06-30
  • Contact: yong zhang E-mail:yongzhang@bupt.edu.cn
  • Supported by:
    This work was supported by the National Key R&D Program of China (No. 2018YFB1201500), the National Natural Science Foundation of China (No. 61771072), the Beijing Natural Science Foundation (No. L171011) and the Science and Technology Research & Development Plan of China Railway Corporation (No. J2018G004)

摘要: Low earth orbit (LEO) satellite network provides global coverage and supports a wide range of services. However, due to the rapid changes and energy-limitation of satellites, how to meet the demand of the quality of service (QoS) from ground traffic and prolong the lifetime of LEO satellite network is the research emphasis of the investigator. Hence, a routing algorithm which takes into account the multi-QoS requirements and satellite energy consumption (QER) of LEO satellite network is proposed. Firstly, the satellite intimacy degree (SID) and the path health degree (PHD) are introduced to obtain the path evaluation function according to the energy consumption and queue state of the satellite. Then, the distributed routing QER is established through the path evaluation function and the idea of genetic algorithm (GA), which enables each satellite to adjust traffic and realizes the network load balancing. Simulation results show that QER performs well in terms of end-to-end delay, delay jitter, and system throughput.

关键词: LEO satellite network, routing, multi-QoS, energy

Abstract: Low earth orbit (LEO) satellite network provides global coverage and supports a wide range of services. However, due to the rapid changes and energy-limitation of satellites, how to meet the demand of the quality of service (QoS) from ground traffic and prolong the lifetime of LEO satellite network is the research emphasis of the investigator. Hence, a routing algorithm which takes into account the multi-QoS requirements and satellite energy consumption (QER) of LEO satellite network is proposed. Firstly, the satellite intimacy degree (SID) and the path health degree (PHD) are introduced to obtain the path evaluation function according to the energy consumption and queue state of the satellite. Then, the distributed routing QER is established through the path evaluation function and the idea of genetic algorithm (GA), which enables each satellite to adjust traffic and realizes the network load balancing. Simulation results show that QER performs well in terms of end-to-end delay, delay jitter, and system throughput.

Key words: LEO satellite network, routing, multi-QoS, energy

中图分类号: