Abstract
The Ka-band channels can provide an appealing capacity for the future deep-space communications and space information networks (SINs). In this paper, the noise temperature of time-varying rain attenuation at Ka-band channels is modeled to two states Gilbert-Elliot channel, to capture the channel capacity that randomly ranging from good to bad state. An optimal transmission scheme based on Partially Observable Markov Decision Processes (POMDP) is proposed, and the key thresholds for selecting the optimal transmission method for space information networks (SIN) are derived. Simulation results show that our proposed scheme can effectively improve the throughput.
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Acknowledgment
This work was supported in part by the National Natural Sciences Foundation of China (NSFC) under Grant 61771158, 61701136, 61525103 and 61371102, and the Shenzhen Basic Research Program under Grant JCYJ20160328163327348 and JCYJ20150930150304185.
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Sui, X., Jiao, J., Gu, S., Wu, S., Zhang, Q., Wu, W. (2019). Optimal Transmission Policy Based on POMDP over Ka-Band Channels in SINs. In: Liang, Q., Mu, J., Jia, M., Wang, W., Feng, X., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2017. Lecture Notes in Electrical Engineering, vol 463. Springer, Singapore. https://doi.org/10.1007/978-981-10-6571-2_135
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DOI: https://doi.org/10.1007/978-981-10-6571-2_135
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