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首页> 外文期刊>Wireless Communications Letters, IEEE >Secrecy Outage Analysis for Satellite-Terrestrial Downlink Transmissions
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Secrecy Outage Analysis for Satellite-Terrestrial Downlink Transmissions

机译:卫星陆地下行链路传输的保密性中断分析

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摘要

This letter investigates the secrecy outage performance of satellite-to-terrestrial downlink transmissions consisting of one legitimate receiver (D) and one eavesdropper (E). To reflect the practical application scenarios, it is assumed that D and E are randomly distributed in the footprint of the satellite. Furthermore, in the considered downlink scenario, D and E are equipped with multiple antennas, and maximal ratio combining (MRC) technique is adopted at both of them to seek the maximum receiving diversity gain. To reveal the impacts of the randomness of the positions of D and E, and MRC scheme on the secrecy outage performance of the considered satellite-terrestrial system, the exact and asymptotic closed-form analytical expressions for secrecy outage probability are derived by using stochastic geometry method. Finally, simulation results are given to confirm the accuracy of our proposed analytical models.
机译:这封信调查了由一个合法接收器(D)和一个窃听者(E)组成的卫星到地面下行链路传输的保密性停电。为了反映实际应用场景,假设D和E随机分布在卫星的占地面积中。此外,在考虑的下行方案中,D和E配备有多个天线,并且在它们中采用最大比率(MRC)技术以寻求最大接收分集增益。为了揭示D和E的位置的随机性的影响,以及MRC方案对所考虑的卫星 - 陆地系统的保密性中断性能,通过使用随机几何形状来源的保密性中断概率的精确和渐近闭合形式分析表达式方法。最后,仿真结果是确认我们提出的分析模型的准确性。

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