星地网络中基于感知的频谱共享方法

doi:10.11959/j.issn.2096-8930.2021042

天地一体化信息网络 ›› 2021, Vol. 2 ›› Issue (4): 43-52.doi: 10.11959/j.issn.2096-8930.2021042

所属专题：专题：面向6G的天地一体化信息网络

• 专题：面向6G的天地一体化信息网络 • 上一篇下一篇

星地网络中基于感知的频谱共享方法

胡婧, 边东明, 田湘, 朱银霞, 张剑

中国人民解放军陆军工程大学通信工程学院，江苏南京 210000

修回日期:2021-10-21 出版日期:2021-12-20 发布日期:2021-12-01
作者简介: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
基金资助:
国家自然科学基金资助项目(61971440);国家自然科学基金资助项目(91738201)

Sensing-Based Spectrum Sharing Method in Satellite-Terrestrial Network

Jing HU, Dongming BIAN, Xiang TIAN, Yinxia ZHU, Jian ZHANG

College of Communications Engineering, PLA Army Engineering University, Nanjing 210000, China

Revised:2021-10-21 Online:2021-12-20 Published:2021-12-01
Supported by:
The National Natural Science Foundation of China(61971440);The National Natural Science Foundation of China(91738201)

摘要/Abstract

摘要：

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。

关键词: 星地网络, 频谱共享, 频谱感知, 吞吐量

Abstract:

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.

Key words: satellite-terrestrial network, spectrum sharing, spectrum sensing, throughput

中图分类号:

TP393

胡婧, 边东明, 田湘, 朱银霞, 张剑. 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, Yinxia ZHU, Jian ZHANG. Sensing-Based Spectrum Sharing Method in Satellite-Terrestrial Network[J]. Space-Integrated-Ground Information Networks, 2021, 2(4): 43-52.

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星地网络中基于感知的频谱共享方法

Sensing-Based Spectrum Sharing Method in Satellite-Terrestrial Network

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