Article
Computer Science, Information Systems
Mohammad Amir Dastgheib, Elahe Zolala, Hamzeh Beyranvand, Jawad A. Salehi
Summary: This letter investigates the fundamental limits of energy efficiency in Visible Light Communication systems and proposes energy-efficient signaling schemes, achieving significant improvements in energy efficiency.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Chemistry, Analytical
Catalin Beguni, Alin-Mihai Cailean, Sebastian-Andrei Avatamanitei, Eduard Zadobrischi, Raul Stoler, Mihai Dimian, Valentin Popa, Bastien Bechadergue, Luc Chassagne
Summary: This article presents a new in-vehicle visible light communication system that provides car passengers with optical wireless communication. The proposed system includes a visible light communication emitter integrated into the vehicle's ambient lighting system and a mobile receiver. The experimental evaluation demonstrated the feasibility and effectiveness of the system, achieving a data rate of 250 kb/s with a BER lower than 10(-7).
Article
Engineering, Electrical & Electronic
Kai Lennert Bober, Sreelal Maravanchery Mana, Malte Hinrichs, Sepideh Mohammadi Kouhini, Christoph Kottke, Dominic Schulz, Christian Schmidt, Ronald Freund, Volker Jungnickel
Summary: This paper presents a concept for networked optical wireless communications, also known as LiFi, to meet the requirements of industrial wireless applications, primarily focusing on mobility support, real-time communication, and integrated positioning. The main contribution is a medium access control protocol based on space division multiple access, with evaluation results showing the advantages of joint transmission and dynamic switching between spatial diversity and multiplexing. The relevance of spatial multiplexing is highlighted through channel measurements in an indoor scenario.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Xinyue Guo, Yuansha Yuan, Chao Pan, Jiangnan Xiao
Summary: The proposed superposed 64QAM constellation scheme utilizes two geometrically shaped 8QAM constellations to reduce peak-to-average power ratio and minimize the risk of nonlinear distortion in 2 x 2 MIMO VLC systems. Experimental results show improved bit error rate performance compared to traditional schemes, with a dynamic range improvement in driving peak-to-peak voltages of LEDs when optimal power ratio is achieved.
Review
Computer Science, Hardware & Architecture
Selma Yahia, Yassine Meraihi, Amar Ramdane-Cherif, Asma Benmessaoud Gabis, Dalila Acheli, Hongyu Guan
Summary: This paper provides a comprehensive survey of VLC channel modeling techniques, describing the main components and different channel models in various environments, comparing algorithms proposed in each environment, and giving concluding remarks and future research directions for VLC channel models.
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
(2021)
Article
Engineering, Marine
Xiaoji Li, Leiming Sun, Jiemei Huang, Fanze Zeng
Summary: Underwater wireless communication technology is important for marine environment monitoring and ecological protection. Underwater optical wireless communications have advantages of long transmission distance, high rate, low power consumption, and strong anti-interference ability. However, there are issues of unstable transmission and limited communication distance. This paper establishes a model of ocean turbulence channels and studies the transmission characteristics of orbital angular momentum light. The polarization coding technique is applied to extend the communication distance and reduce the system bit error rate.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Ruowen Bai, Steve Hranilovic
Summary: This paper introduces a new KK optical OFDM system for bandlimited IM/DD VLC channels, achieving a real-valued, non-negative, and strictly bandlimited transmit signal suitable for VLC channels. Numerical results show that KKO-OFDM gains approximately 1 dB optical SNR and performs well in terms of bit error rate.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Civil
Moaaz Ahmed, Muhammad Asim Atta, James Farmer, Zaher Dawy, Dominic O'Brien, Amine Bermak
Summary: This paper discusses various techniques to suppress ambient light interference in visible light communication systems, particularly focusing on VLC systems for vehicular communication. The study addresses the challenges of designing transceivers for outdoor VLC systems in dynamic environments with interference from different types of ambient light sources. It offers qualitative insights by considering multiple physical domains to tackle the issue of optical interference.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Chemistry, Analytical
Emmanuel Plascencia, Hongyu Guan, Luc Chassagne, Olivier Barrois, Oyunchimeg Shagdar, Alin-Mihai Cailean
Summary: This article investigates the disruptive effects of mutual interference caused by neighboring vehicle-to-vehicle (V2V) VLC links, emphasizing the importance of considering these effects in vehicular VLC applications.
Article
Engineering, Electrical & Electronic
Shimeng Chen, Yun Liu, Qingxu Yu, Wei Peng
Summary: This article demonstrates a novel interference behavior excited by visible light in a capillary waveguide (CWG) and systematically investigates the sensing principle and optical characteristics of CWG. The proposed sensor shows sharp interference fringes and tunable temperature sensitivity, with the potential to be used as an optical interferometer with lower cost and wider dynamic range.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Catalin Beguni, Alin-Mihai Cailean, Sebastian-Andrei Avatamanitei, Alin-Dan Potorac, Eduard Zadobrischi, Mihai Dimian
Summary: Due to its unique advantages, the integration of VLC in vehicle safety applications has become a major research topic. This article proposes a novel approach to increase vehicular VLC systems' communication range by improving the VLC system based on the benefits that can be achieved through the VLC transmitter. The concept is based on LED current overdriving and a modified VPPM, which provide higher optical power and improved SNR for the VLC receiver.
Article
Telecommunications
Marcelo de Oliveira, Fernando Cesar Baraviera Tosta, David Esteban Farfan Guillen, Paulo P. Monteiro, Alexandre de Almeida Prado Pohl
Summary: Visible light communications (VLC) is an emerging technology that uses LEDs and photodiodes to provide high-speed communication in the visible light spectrum. This paper analyzes the communication and illumination performance of an LED lamp and shows that it is capable of providing both simultaneously.
WIRELESS PERSONAL COMMUNICATIONS
(2022)
Review
Computer Science, Information Systems
Stephen P. Najda, Piotr Perlin, Tadek Suski, Lucja Marona, Mike Leszczynski, Przemek Wisniewski, Szymon Stanczyk, Dario Schiavon, Thomas Slight, Malcolm A. Watson, Steffan Gwyn, Anthony E. Kelly, Scott Watson
Summary: Recent research has shown that gallium nitride laser diodes have great potential for visible light communication. Results have demonstrated high-frequency operation of AlGaInN lasers in free space and underwater, achieving data transmission rates of up to 2.5 Gbit/s, as well as high bandwidths in plastic optical fibers. Distributed feedback GaN laser diodes have been fabricated for single-frequency operation, with a side-mode suppression ratio exceeding 35 dB.
Article
Computer Science, Information Systems
Krishnendu Bera, Rajendran Parthiban, Nemai Karmakar
Summary: A combination of blue laser diode and warm white light emitting diode has been used for indoor lighting and visible light communications, achieving longer communication distance and higher data rates. The use of an engineered diffuser improves the coverage area of the communication system.
Article
Chemistry, Analytical
Catalin Beguni, Alin-Mihai Cailean, Sebastian-Andrei Avatamanitei, Mihai Dimian
Summary: The use of Visible Light Communications (VLC) in vehicular applications is a major research area due to its simplicity and high performance. This article provides analysis and experimental evaluations on integrating light dimming function in vehicular VLC systems, showing the potential of VLC technology to support inter-vehicle communication links even in light dimming conditions.
Article
Engineering, Electrical & Electronic
Sihua Shao, Guanxiong Liu, Abdallah Khreishah, Moussa Ayyash, Hany Elgala, Thomas D. C. Little, Michael Rahaim
IEEE PHOTONICS JOURNAL
(2020)
Article
Multidisciplinary Sciences
Monette H. Khadr, Hany Elgala, Michael Rahaim, Abdallah Khreishah, Moussa Ayyash, Thomas Little
Summary: The SA-SM technique alters the time-domain signal using a key for combating eavesdropping and introduces a novel periodic key selection algorithm. ML methods help nodes estimate the used key, achieving positive secrecy capacity with minimal signal-to-noise ratio penalty for both RF and optical links.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Michael B. Rahaim, Thomas D. C. Little, Mona Hella
Summary: This paper introduces a multi-tier heterogeneous (MTH) beamform management strategy that utilizes various wireless technologies to quickly acquire a highly directional indoor free space optical communication (FSO) link. The multi-tier design combines the high resolution of indoor FSO with the millimeter-wave system to narrow the FSO search space, ensuring a practical search time.
APPLIED SCIENCES-BASEL
(2021)
Article
Computer Science, Hardware & Architecture
Michael Rahaim, Siddhartan Govindasamy
Summary: This paper focuses on the novel challenges related to control-plane asymmetry in wireless networks with asymmetric connectivity and presents a theoretical framework for throughput analysis. Simulation and experimental validation are used to verify the analysis. The derived throughput equations are further used to analyze the impact of various protocol parameters.
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
(2022)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Arsalan Ahmed, Michael B. Rahaim
Summary: Research in optical wireless communications (OWC) has significantly increased over the past decade, with new researchers facing various hurdles in developing research programs. This work introduces an open source module for the GNURadio signal processing toolkit, providing signal processing blocks for OWC channel simulation and modulation/demodulation techniques. The project aims for continued development and engagement with the broader OWC research community.
2021 17TH INTERNATIONAL CONFERENCE ON WIRELESS AND MOBILE COMPUTING, NETWORKING AND COMMUNICATIONS (WIMOB 2021)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
I Abdalla, M. B. Rahaim, T. D. C. Little
2020 IEEE GLOBECOM WORKSHOPS (GC WKSHPS)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
I Abdalla, M. B. Rahaim, T. D. C. Little
ICC 2020 - 2020 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
E. W. Lam, T. D. C. Little
2020 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (ICC WORKSHOPS)
(2020)
Article
Computer Science, Information Systems
Iman Abdalla, Michael B. Rahaim, Thomas D. C. Little
