广西师范大学学报（自然科学版） ›› 2019, Vol. 37 ›› Issue (4): 94-102.doi: 10.16088/j.issn.1001-6600.2019.04.012

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基于事件驱动的通信卫星传输功率的最优控制

熊晨旭, 韦妙云, 唐胜达*   

  1. 广西师范大学数学与统计学院,广西桂林541006
  • 收稿日期:2018-09-13 出版日期:2019-10-25 发布日期:2019-11-28
  • 通讯作者: 唐胜达(1976—),男,四川蓬溪人,广西师范大学副教授,博士。E-mail: tangsd@gxnu.edu.cn
  • 基金资助:
    国家自然科学基金(61761008, 61561046);广西高校数学与统计模型重点实验室开放课题(2017GXKLM002);广西师范大学博士启动基金(2017BQ002);广西研究生教育创新计划项目(YCSW2018098)

Optimal Event-driven Transmission Power Rate for Communication Satellite

XIONG Chenxu, WEI Miaoyun, TANG Shengda*   

  1. College of Mathematics and Statistics, Guangxi Normal University, Guilin Guangxi 541006, China
  • Received:2018-09-13 Online:2019-10-25 Published:2019-11-28

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摘要： 本文提出服务请求、能量获取随机情形下,通信卫星在衰落信道中的通信随机模型,研究基于吞吐量最大的事件驱动的传输功率控制问题。本文将通信系统随机模型转换为混合状态且具有有限动作集合的Markov决策过程,给出最优传输功率的存在性证明及算法实现;以事件驱动传输功率数值实例说明理论结果;分析了参数对系统性能的影响特点。本文结论对通信卫星的通信设计与管理、资源配置优化及持续发展具有积极意义。

关键词: 卫星通信, 最优控制, 传输功率, Markov决策过程

Abstract: In this paper, the stochastic model of the communication system of a communications satellite in the fading channel is given under the random service request and random energy harvesting. The problem of maximum throughput based on event-driven TPR control is presented. The stochastic communication model system is transformed into a hybrid-state Markov decision processes with finite action sets, the existence of the optimal stationary policy is illustrated and the optimal TPR algorithm is proposed. Finally, a numerical example of event-driven TPR is presented to illustrate the theoretical result, and the influences of system parameters on performance are also investigated. This study has a positive significance to the communication design and management, resource allocation optimization and sustainable development of communication satellites.

Key words: satellite communications, optimal control, transmission power rate, Markov decision process

中图分类号: 

  • O211.62
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