Improving ELB in multi-hop satellite constellations with short ISL delays

Tetsuya Takahashi, Tarik Taleb, Kazuo Hashimoto, Nei Kato

研究成果: Conference contribution

4 引用 (Scopus)

抜粋

The community of next generation multi-hop satellite networks users will exhibit high variance in geographical distributions. In this regard, efficient traffic control and load balancing schemes are mandatory. Recently the authors have proposed an efficient method for load balancing over multihop satellite networks dubbed an "Explicit Load Balancing" (ELB). In ELB, each satellite monitors its own queue length. If a satellite is about to get congested, it sends an explicit message asking its neighboring satellites to detour a portion of their traffic to alternative paths that do not involve the congesting satellite. Simulation results demonstrated the efficiency of ELB in satellite networks with relatively long inter-satellite link (ISL) delays. In case of satellite constellations with shorter ISL delays, the working of ELB becomes limited as the neighboring satellites are more likely to get promptly congested due to the short detouring range. To cope with this limitation, there is need for explicit exchange of the congestion state among not only neighboring satellites but also satellites at k-hop distance from the congesting satellite. The key idea of the proposed enhancements to ELB consists in the use of the Gaussian distribution to determine the parameter k and the cost of links among satellites that are k-hop distant from the congesting satellite. The performance of the proposed enhancements is evaluated through simulations. The simulation results elucidate that the proposed solution improves the performance of ELB, especially in satellite constellations with short ISL delays.

元の言語English
ホスト出版物のタイトル25th AIAA International Communications Satellite Systems Conference
出版者American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷物)9781624100079
DOI
出版物ステータスPublished - 2007
外部発表Yes
イベント25th AIAA International Communications Satellite Systems Conference, ICSSC 2010 - Seoul, Korea, Republic of
継続期間: 2007 4 102007 4 13

出版物シリーズ

名前25th AIAA International Communications Satellite Systems Conference

Conference

Conference25th AIAA International Communications Satellite Systems Conference, ICSSC 2010
Korea, Republic of
Seoul
期間07/4/1007/4/13

ASJC Scopus subject areas

  • Signal Processing
  • Atmospheric Science
  • Electrical and Electronic Engineering
  • Media Technology
  • Computer Networks and Communications

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  • これを引用

    Takahashi, T., Taleb, T., Hashimoto, K., & Kato, N. (2007). Improving ELB in multi-hop satellite constellations with short ISL delays. : 25th AIAA International Communications Satellite Systems Conference (25th AIAA International Communications Satellite Systems Conference). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2007-3246