Wireless Internet. 10th International Conference, WiCON 2017, Tianjin, China, December 16-17, 2017, Proceedings

Research Article

A Markov Decision Based Optimization on Bundle Size over Two-Hop Inter-satellite Links

  • @INPROCEEDINGS{10.1007/978-3-319-90802-1_31,
        author={Yue Li and Zhihua Yang and Peng Yuan},
        title={A Markov Decision Based Optimization on Bundle Size over Two-Hop Inter-satellite Links},
        proceedings={Wireless Internet. 10th International Conference, WiCON 2017, Tianjin, China, December 16-17, 2017, Proceedings},
        proceedings_a={WICON},
        year={2018},
        month={5},
        keywords={DTN Markov decision Bundles Memory},
        doi={10.1007/978-3-319-90802-1_31}
    }
    
  • Yue Li
    Zhihua Yang
    Peng Yuan
    Year: 2018
    A Markov Decision Based Optimization on Bundle Size over Two-Hop Inter-satellite Links
    WICON
    Springer
    DOI: 10.1007/978-3-319-90802-1_31
Yue Li1,*, Zhihua Yang1,*, Peng Yuan1,*
  • 1: Harbin Institute of Technology
*Contact email: liyue1234566@126.com, yangzhihua@hit.edu.cn, yuanp1990@163.com

Abstract

In a satellite Disruption-Tolerant Network (DTN), bundle delivery is obviously affected by time-varying parameters, i.e. bit error ratio and propagation latency, due to constantly changing distance and connectivity between consecutive orbital nodes. In this paper, we proposed a Markov decision based optimization approach for bundle size, which could efficiently improve the expected time of delivery over a dynamic two-hop Inter-Satellite Link (ISL). In particular, a sequence of optimal bundle sizes are adaptively selected according to distance-dependent current channel parameters, which could make full utilization on intermediate node’s memory. The simulation results verified the proposed method with different conditions with comparison.