Results 61 to 70 of about 1,128 (193)

Rolling Shutter OFDM Scheme for Optical Camera Communication Considering Mobility Environment Based on Deep Learning

Applied Sciences, 2022
This paper presents a rolling shutter orthogonal frequency-division multiplexing (RS-OFDM) optical camera communication higher rate longer range proposed in IEEE 802.15.7a Task Group (TG7a) using an image sensor as a receiver.
Huy Nguyen, Van Linh Nguyen, Duc Hoang Tran, Yeong Min Jang   +3 more
doaj   +1 more source

A study of discrete wavelet transform based denoising to reduce the effect of artificial light interferences for indoor optical wireless communication

, 2010
The optical power penalty (OPP) due to the artificial light interferences (ALIs) can be significantly high in an indoor optical wireless communication (OWC) channel making such link practically infeasible.
Ghassemlooy, Zabih, M. Angelova, Z. Ghassemlooy, Angelova, Maia, Rajbhandari, Sujan, S. Rajbhandari   +5 more
core   +1 more source

Optimisation of transmission bandwidth for indoor cellular OWC system using a dynamic handover decision-making algorithm [PDF]

, 2012
In this paper, we propose a novel cellular optical wireless communications (COWC) system with four diffused cells. A dynamic handover scheme is proposed to make the link more flexible by the way of adaptive channel allocation in different environments ...
Rajbhandari, S, Z. Ghassemlooy, Wu, Dehao, Lim, Wansu, D. Wu, W. Lim, S. Rajbhandari, Wu, D, Minh, H. Le, Ghassemlooy, Zabih, H. Le Minh, Ghassemlooy, Z, Rajbhandari, Sujan, Lim, L., Le Minh, Hoa   +14 more
core   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

Advanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti, Marco Meucci, Paolo Foggi, Caterina Credi, Satoshi Iketani, Cristiana Lofrumento, Jacopo Catani   +6 more
wiley   +1 more source

Photonic integration technologies for indoor optical wireless communications [PDF]

, 2018
Indoor optical wireless communication (OWC) using steerable infrared beams is regarded as an important component in future 5G network. Photonic integration technologies can meet the criteria of such application, and provide low-cost, high-performance and
Cao, Zizheng, Jiao, Y Yuqing, Jiao, Yuqing, Cao, Z Zizheng   +3 more
core   +1 more source

Survey of next-generation optical wireless communication technologies for 6G and Beyond 6G

ICT Express
Demand for high-speed services has surged. The increasing congestion in the radio frequency system, which ranges from 3 kHz to 300 GHz, threatens the growth of next-generation wireless technologies. Despite advancements in signal processing and dedicated
Huy Nguyen, Al-Imran, Yeong Min Jang
doaj   +1 more source

Theoretical Demonstration of Security Improvement of Optical Phased Array Based on Optically Injection-Locked Lasers

Photonics, 2021
The high security of optical phased array (OPA) signals is an important requirement for OPA-based optical wireless communication (OWC). We propose a method for improving the security of OPA-based OWC systems using optically injection-locked (OIL ...
Anh-Hang Nguyen, Jun-Hyung Cho, Hyuk-Kee Sung   +2 more
doaj   +1 more source

MAC Protocol Design for Optical Wireless Body‐Area Networks: Latency, Energy Efficiency and Scalability Analysis

IET Networks, Volume 15, Issue 1, January/December 2026.
This work investigates suitable MAC protocols for medical optical wireless body‐area networks (WBANs), focussing on multiple access management. Using realistic channel models, we evaluate the network performance in terms of energy efficiency, quality‐of‐service and scalability for different IEEE protocols, for both intra‐ and extra‐WBAN connectivity in
Christos Giachoudis, Mohammad‐Ali Khalighi, Stanislav Zvanovec, Vasilis K. Papanikolaou, Sotiris A. Tegos, George K. Karagiannidis   +5 more
wiley   +1 more source

Performance Analysis of the LDPC‐Coded Hybrid LQAM‐MPPM for UWOC Systems

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
The effectiveness of LDPC codes in improving the performance of hybrid modulations is discussed, with coded 128‐QAM‐(12, 2) MPPM offering ~6.5 and 5.8 dB code gains at a BER of in strong and moderate turbulence, respectively. These results demonstrate the promise of hybrid modulation with LDPC as a robust and efficient modulation scheme for UWOC ...
Hongyan Jiang, Wanyi Hu, Xin Liao, Ning He, Wasiu Popoola, Ahmad Fairuz Omar, Sujan Rajbhandari   +6 more
wiley   +1 more source

Viologen phosphoric acid salt modified PEDOT:PSS for high‐performance 3D perovskite photodetectors

InfoMat, Volume 7, Issue 12, December 2025.
A novel viologen derivative, APV, is incorporated into PEDOT:PSS to enhance the performance of 3D perovskite photodetectors. The optimized device achieves an ultra‐low dark current of 5.75 × 10−7 mA cm−2 and a large bandwidth of 1.5 MHz. Integrated into an optical wireless communication system, it achieves a data rate of 12.5 Mbps, demonstrating ...
Hong Chen, Yueyue Wang, Haoyu Huang, Zilong Ye, Bin Deng, Xiteng Li, Xiaopeng Zhang, Meili Xu, Hong Meng   +8 more
wiley   +1 more source