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
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.