研究目的
To enhance the secrecy performance of the spatial modulation aided visible light communication (VLC) system by proposing an optical jamming aided secrecy enhancement scheme.
研究成果
The paper concludes that the proposed optical jamming aided secrecy enhancement scheme significantly improves the secrecy performance of SM-VLC systems. The scheme is capable of degrading Eve's reception without affecting Bob's reception, leading to an improved secrecy performance. The trade-off between secrecy performance and BER performance is carefully considered, and a look-up table can be constructed to guide the optimal system parameters design.
研究不足
The study assumes full knowledge of the Alice-to-Bob channel but no knowledge of the Alice-to-Eve channel. The analysis simplifies by neglecting non-line-of-sight (NLoS) components and focuses on line-of-sight (LoS) components for tractability. The approximation of the sum of independent truncated Gaussian distributed variables as Gaussian may introduce errors, especially for a small number of LEDs.
1：Experimental Design and Method Selection:
The paper proposes an optical jamming aided secrecy enhancement scheme for SM-VLC systems, utilizing truncated Gaussian distribution for optical jamming signals to satisfy amplitude and power constraints.
2：Sample Selection and Data Sources:
The study considers a typical indoor VLC environment with specific dimensions and positions for LEDs and receivers.
3：List of Experimental Equipment and Materials:
Includes Nt down-facing LEDs installed on the ceiling, photo-detectors (PDs) for receivers, and parameters like half-illuminance semi-angle of LED, area of each PD, and responsivity.
4：Experimental Procedures and Operational Workflow:
The transmitter sends optical jamming signals and con?dential signals simultaneously. The secrecy performance is analyzed through AMI, lower bound on AMI, and achievable secrecy rate.
5：Data Analysis Methods:
The paper derives closed-form approximations for AMI and analyzes the impact of peak optical intensity constraint on the system's secrecy performance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
