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[ "胡婧(1981-),女,博士,陆军工程大学通信工程学院副教授,主要研究方向为卫星通信、信号处理、频谱监测" ]
[ "边东明(1976-),男,博士,陆军工程大学通信工程学院副教授,主要研究方向为卫星通信、天地一体化、卫星测控" ]
[ "田湘(1982-),女,硕士,陆军工程大学通信工程学院讲师,主要研究方向为卫星通信、卫星导航" ]
[ "朱银霞(1986-),女,硕士,陆军工程大学通信工程学院讲师,主要研究方向为卫星通信、微波器件" ]
[ "张剑(1980-),男,博士,陆军工程大学通信工程学院讲师,主要研究方向为卫星通信、混沌通信、同步技术" ]
网络出版日期:2021-12,
纸质出版日期:2021-12-20
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胡婧, 边东明, 田湘, 等. 星地网络中基于感知的频谱共享方法[J]. 天地一体化信息网络, 2021,2(4):43-52.
Jing HU, Dongming BIAN, Xiang TIAN, et al. Sensing-Based Spectrum Sharing Method in Satellite-Terrestrial Network[J]. Space-integrated-ground information networks, 2021, 2(4): 43-52.
胡婧, 边东明, 田湘, 等. 星地网络中基于感知的频谱共享方法[J]. 天地一体化信息网络, 2021,2(4):43-52. DOI: 10.11959/j.issn.2096-8930.2021042.
Jing HU, Dongming BIAN, Xiang TIAN, et al. Sensing-Based Spectrum Sharing Method in Satellite-Terrestrial Network[J]. Space-integrated-ground information networks, 2021, 2(4): 43-52. DOI: 10.11959/j.issn.2096-8930.2021042.
针对星地网络中卫星上行链路与地面网络频率共享问题,挖掘频率共享空间可能性,搭建基于周期感知的机会频谱接入模型;研究感知时长与卫星上行链路吞吐量权衡问题,证明吞吐量是关于感知时长的凹函数;对时变信道引入多时隙感知和协作感知方法,分析两种方法对感知性能的提升。仿真结果表明,设计卫星网络的感知时长可以最大化上行链路吞吐量,多时隙感知和协作感知策略可以进一步提升卫星网络吞吐量。
Considering the spatial possibility of opportunistic spectrum sharing
sensing-based spectrum sharing method ws applied in the satellite-terrestrial network.The sensing-throughput tradeoff problem was studied
and the throughput is a concave function of the sensing duration was proved.In order to further improved the satellite uplink throughput
the multi-slots sensing method and the cooperative sensing method were proposed.Computer simulations showed that the optimal sensing duration could maximized the uplink throughput
and the multi-slot sensing method or the cooperative sensing method could further improved the throughput of satellite network.
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