- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2018 International Conference on Network Infrastructure and Digital Content (IC-NIDC) - Guiyang (2018.8.22-2018.8.24)] 2018 International Conference on Network Infrastructure and Digital Content (IC-NIDC) - Mobile phone Camera Based Visible Light Communication Using Non-Line-of-Sight (NLOS) Link
摘要： Traditional mobile phone camera based visible light communication (VLC) mainly uses line-of-sight (LOS) link, whose performance will be seriously affected by the blooming effect of complementary metal-oxide-semiconductor (CMOS) camera. In this paper, we introduce a mobile phone camera based VLC using non-line-of-sight (NLOS) link. By using our proposed moving exponent average (MEA) algorithm, the VLC system using NLOS link can achieve a data of 5 Kbps at a given transmission distance of 100 cm.
关键词： Mobile phone camera,Visible light communication (VLC),Non-line-of-sight (NLOS),blooming effect,Rolling shutter
更新于2025-09-04 15:30:14
-
Enhancing the Secrecy Performance of the Spatial Modulation Aided VLC Systems with Optical Jamming
摘要： In order to enhance the secrecy performance of the spatial modulation (SM) aided visible light communication (VLC) system, an optical jamming aided secrecy enhancement scheme is proposed in this paper, in which transmitter (Alice) sends the optical jamming signals and the con?dential signals simultaneously with amplitude and power constraints, wherein the truncated Gaussian distribution is adopted by the optical jamming signals for the considered constraints. Additionally, with ?nite discrete support set of the channel inputs’ distribution, the corresponding secrecy performance is systematically analyzed for the optical jamming aided SM-VLC system, which includes the average mutual information (AMI), the lower bound on AMI and its closed-form expression approximation and the achievable secrecy rate. Furthermore, the power allocation problem for the proposed SM-VLC systems with optical jamming is considered. Finally, extensive simulation results are presented to validate our analytical results and the secrecy versus bit error ratio (BER) trade-off is characterized.
关键词： physical layer security (PLS),Visible light communication (VLC),spatial modulation (SM),power allocation,achievable secrecy rate,optical jamming
更新于2025-09-04 15:30:14