MIMO VLC高斯窃听信道可实现保密率研究

M. Arfaoui, A. Ghrayeb, C. Assi
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引用次数: 15

摘要

本文研究了多输入多输出(MIMO)可见光通信(VLC)高斯窃听信道的可实现保密率。我们考虑一个由三个节点组成的系统模型:一个发射器(Alice)配备多个led灯具,一个合法接收器(Bob)和一个窃听器(Eve),每个都配备多个光电二极管(pd)。本文首先研究了使MIMO VLC窃听信道保密率最大化的最优信令方案问题。我们考虑Eve的位置已知(即完美通道状态信息(CSI))或未知(即不完美CSI)的情况。最后,我们推导了一个保密能力的上界,我们用它来评估可实现的保密率与导出界的接近程度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the achievable secrecy rate of the MIMO VLC Gaussian wiretap channel
We investigate in this paper the achievable secrecy rate of the multiple-input multiple-output (MIMO) visible light communication (VLC) Gaussian wiretap channel. We consider a system model comprising three nodes: one transmitter (Alice) equipped with multiple fixtures of LEDs, one legitimate receiver (Bob) and one eavesdropper (Eve), each equipped with multiple photo-diodes (PDs). We study at first the problem of optimal signaling scheme that maximizes the achievable secrecy rate of the MIMO VLC wiretap channel. We consider the cases where the location of Eve is known (i.e. perfect channel state information (CSI)) or unknown (i.e. imperfect CSI). Finally, we derive an upper bound on the secrecy capacity that we used to assess the closeness of the achievable secrecy rate to the derived bound.
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