Journal ArticleDOI
Efficient vertical handover scheme for heterogeneous VLC-RF systems
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TLDR
The proposed scheme is able to save about 50% of the signaling cost of the VHO process without an obvious loss in system performance and is adaptable to different scenarios.Abstract:
Visible light communication (VLC) is a promising complementary technology to its radio frequency (RF) counterpart. Heterogeneous VLC-WiFi systems offer a solution for future indoor communications that combines VLC to support high data rate transmission and RF to support reliable connectivity. In such heterogeneous systems, vertical handover (VHO) is critical for improving the system performance. This paper investigates an efficient VHO scheme. We formulate it as a Markov decision process problem and adopt a dynamic approach to obtain a tradeoff between the switching cost and the delay requirement. The proposed scheme determines whether to perform VHO given the queue length and the condition of the optical wireless channel (available or unavailable). The simulation results demonstrate that the proposed scheme is able to save about 50% of the signaling cost of the VHO process without an obvious loss in system performance. Moreover, the proposed scheme is adaptable to different scenarios.read more
Citations
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Journal ArticleDOI
Optical Wireless Hybrid Networks: Trends, Opportunities, Challenges, and Research Directions
TL;DR: This study surveys the state of the art and key research directions regarding optical wireless hybrid networks, being the first extensive survey dedicated to this topic and outlines important challenges that need to be addressed for successful deployment of optical Wireless hybrid network systems for 5G and IoT paradigms.
Journal ArticleDOI
Secure Hybrid VLC-RF Systems With Light Energy Harvesting
Gaofeng Pan,Jia Ye,Zhiguo Ding +2 more
TL;DR: This paper derives the analytical expressions for exact and asymptotic secrecy outage probability by using the stochastic geometry method and simulations are carried out to verify the proposed analytical models.
Journal ArticleDOI
Hybrid LiFi and WiFi Networks: A Survey
TL;DR: In this paper, the authors present a survey-style introduction to HLWNets, starting with a framework of system design in the aspects of network architectures, cell deployments, multiple access and modulation schemes, illumination requirements and backhaul.
Journal ArticleDOI
Physical Layer Security for Visible Light Communication Systems: A Survey
Mohamed Amine Arfaoui,Mohammad Dehghani Soltani,Iman Tavakkolnia,Ali Ghrayeb,Majid Safari,Chadi Assi,Harald Haas +6 more
TL;DR: In this paper, the authors provide a comprehensive survey on PLS for VLC from information theoretic and signal processing point of views, including different channel models, input distributions, network configurations, precoding/signaling strategies, and secrecy capacity and information rates.
Posted Content
Physical Layer Security for Visible Light Communication Systems: A Survey
Mohamed Amine Arfaoui,Mohammad Dehghani Soltani,Iman Tavakkolnia,Ali Ghrayeb,Chadi Assi,Majid Safari,Harald Haas +6 more
TL;DR: A number of timely and open research directions are proposed for PLS-VLC systems, including the application of measurement-based indoor and outdoor channel models, incorporating user mobility and device orientation into the channel model, and combining VLC and RF systems to realize the potential of such technologies.
References
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Book
Dynamic Programming and Optimal Control
TL;DR: The leading and most up-to-date textbook on the far-ranging algorithmic methododogy of Dynamic Programming, which can be used for optimal control, Markovian decision problems, planning and sequential decision making under uncertainty, and discrete/combinatorial optimization.
Journal ArticleDOI
Fundamental analysis for visible-light communication system using LED lights
T. Komine,Masao Nakagawa +1 more
TL;DR: Based on numerical analyses, it is shown that the proposed indoor visible-light communication system utilizing white LED lights is expected to be the indoor communication of the next generation.
Journal ArticleDOI
IEEE 802.15.7 visible light communication: modulation schemes and dimming support
TL;DR: IEEE 802.15.7 supports high- data-rate visible light communication up to 96 Mb/s by fast modulation of optical light sources which may be dimmed during their operation by dimming adaptable mechanisms for flicker-free high-data-ratevisible light communication.
Journal ArticleDOI
Visible light communication: opportunities, challenges and the path to market
TL;DR: Large-scale commercialization of visible light communication devices will depend on both the development of robust and efficient engineering solutions, and the execution of incremental commercialization strategies.