Results 11 to 20 of about 593 (201)

EXAMPLE OF SWITCHING HYBRID FSO/RF SYSTEMS [PDF]

Acta Electrotechnica et Informatica, 2021
This article addresses the issue of optical communication with Free Space Optics (FSO) and its use. The article deals with the design and construction of a monitoring system designed for the collection and processing of data characterizing the nature of
Renát HALUŠKA, Ľuboš OVSENÍK
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2 × 20 Gbps - 40 GHz OFDM Ro-FSO transmission with mode division multiplexing [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
Radio-over-Free-Space-Optics (Ro-FSO) is a promising technology for future wireless networks. In this work, we have designed a hybrid orthogonal frequency division multiplexing (OFDM) Ro-FSO system for transmission of two independent channels by mode ...
Amphawan A., Chaudhary S., Chan V.W.S.
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Retrofitting FSO Systems in Existing RF Infrastructure: A Non-Zero-Sum Game Technology

IEEE Open Journal of the Communications Society, 2021
Progress in optical wireless communication (OWC) has unleashed the potential to transmit data in an ultra-fast manner without incurring large investments and bulk infrastructure.
Abderrahmen Trichili, Amr Ragheb, Dmitrii Briantcev, Maged A. Esmail, Majid Altamimi, Islam Ashry, Boon S. Ooi, Saleh Alshebeili, Mohamed-Slim Alouini   +8 more
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Performance Evaluation of a 4 × 20-Gbps OFDM-Based FSO Link Incorporating Hybrid W-MDM Techniques

Frontiers in Physics, 2021
Free space optics (FSO) has been recognized as a crucial technique to meet the high-bandwidth requirements in future wireless information transmission links.
Mehtab Singh, Mehtab Singh, Saleh Chebaane, Saleh Chebaane, Sana Ben Khalifa, Sana Ben Khalifa, Amit Grover, Sanjeev Dewra, Mohit Angurala   +8 more
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A RoF-FSO communication system using 10Gbit/s polsk 4-PAM downstream signals [PDF]

ITM Web of Conferences, 2022
In this paper, the performance of a 60 GHz radio over fiber free space optics (RoF-FSO) communication system with 10Gbit/s 4-ary pulse amplitude modulation (4-PAM) polarization shift-keying (Polsk) downlink signal is proposed and designed.
Tian Qing, Shao Yufeng, Wang Anrong, Yang Jie, Wang Zhuang, Yu Ni, Yang Qiming, Yi Linfang, Yuan Jie, Li Yanlin, Chen Peng, Li Chong, Liu Shuanfan, Zuo Renjie   +13 more
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Two-way free-space optics-based interface between fibre and 5G communication employing polarisation-orthogonal modulation

Communications Engineering, 2023
Fifth-generation (5G) communication provides a substantial increase in data transmission capacity because of more available bandwidth and advanced communication techniques.
Hai-Han Lu, Xu-Hong Huang, Chung-Yi Li, Yan-Zhen Xu, Jia-Lian Jin, Wei-Xiang Chen, Chih-Hong Lin, Tsai-Man Wu   +7 more
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Performance analysis of 40 Gb/s free space optics transmission based on orbital angular momentum multiplexed beams

Alexandria Engineering Journal, 2022
This paper explores the data carrying capacity enhancement in free space optics (FSO) transmission systems by employing orbital angular momentum (OAM) multiplexing technique.
Mehtab Singh, Ahmad Atieh, Amit Grover, Omar Barukab   +3 more
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A Hybrid Millimeter-Wave and Free-Space-Optics Communication Architecture with Adaptive Diversity Combining and HARQ Techniques

Photonics, 2023
We propose and demonstrate a hybrid communication architecture that combines millimeter-wave (MMW) in the radio frequency (RF) domain and free-space-optics (FSO) technologies using adaptive combining and hybrid automatic repeat request (HARQ) techniques.
Yinjun Liu, Xiaochuan Tan, Junlian Jia, Boyu Dong, Changle Huang, Penghao Luo, Jianyang Shi, Nan Chi, Junwen Zhang   +8 more
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A Location-Aware Resource Optimization for Maximizing Throughput of Emergency Outdoor–Indoor UAV Communication with FSO/RF

Sensors, 2023
In emergency communication scenarios, unmanned aerial vehicles (UAVs) can be used as an air relay to provide higher-quality communication for indoor users.
Zinan Guo, Wei Gao, Haijun Ye, Guofeng Wang   +3 more
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Hybrid MDM-PDM Based Ro-FSO System for Broadband Services by Incorporating Donut Modes Under Diverse Weather Conditions

Frontiers in Physics, 2021
High-speed data demand in sensitive locations has prompted new wireless technologies to grow in areas like hospitals for bio-sensor data transmission between doctors and patients.
Sushank Chaudhary, Lunchakorn Wuttisittikulkij, Jamel Nebhen, Xuan Tang, Muhammad Saadi, Sattam Al Otaibi, Ahmed Althobaiti, Abhishek Sharma, Sunita Choudhary   +8 more
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