Results 41 to 50 of about 2,264 (197)

Spectrum-Efficient Triple-Layer Hybrid Optical OFDM for IM/DD-Based Optical Wireless Communications [PDF]

, 2020
In this paper, a triple-layer hybrid optical orthogonal frequency division multiplexing (THO-OFDM) for intensity modulation with direct detection (IM/DD) systems with a high spectral efficiency is proposed.
Ghassemlooy, Zabih, Ji, Han, Lin, Bangjiang, Qiao, Shuang, Tang, Xuan, Zhang, Tian   +5 more
core   +2 more sources

Design and Analysis of 5G Optical Communication System for Various Filtering Operations using Wireless Optical Transmission

Results in Physics, 2019
In this paper, the Optical Wireless Communication (OWC) channels for different optical filters are analysed and compared with their previous model. Performance analysis is done using different optical filters namely Bessel, Trapezoidal, Gaussian and ...
K.H. Shakthi Murugan, M. Sumathi
doaj   +1 more source

Deep Learning Framework for Wireless Systems: Applications to Optical Wireless Communications

, 2018
Optical wireless communication (OWC) is a promising technology for future wireless communications owing to its potentials for cost-effective network deployment and high data rate.
Lee, Hoon, Lee, Inkyu, Lee, Sang Hyun, Quek, Tony Q. S.   +3 more
core   +1 more source

The Role of Optical Wireless Communication Technologies in 5G/6G and IoT Solutions: Prospects, Directions, and Challenges

Applied Sciences, 2019
The upcoming fifth- and sixth-generation (5G and 6G, respectively) communication systems are expected to deal with enormous advances compared to the existing fourth-generation communication system.
Mostafa Zaman Chowdhury, Md. Shahjalal, Moh. Khalid Hasan, Yeong Min Jang   +3 more
doaj   +1 more source

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 survey on OFDM-based elastic core optical networking [PDF]

, 2013
Orthogonal frequency-division multiplexing (OFDM) is a modulation technology that has been widely adopted in many new and emerging broadband wireless and wireline communication systems.
De Leenheer, Marc, Morea, A, Mukherjee, B, Zhang, GY   +3 more
core   +2 more sources

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

Analysis of PAPR in optical OFDM systems with grouped LEDs [PDF]

, 2017
The need for multiple transmit chains poses a major challenge in optical orthogonal frequency division multiplexing (OFDM) system utilising grouped light emitting diodes (LEDs) for the purpose of peak-to-average power ratio (PAPR) reduction. Thus, recent
Offiong, Funmilayo B., Popoola, Wasiu O., Sinanovic, Sinan   +2 more
core   +2 more sources

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

Advanced Technologies in Optical Wireless Communications

Photonics
Optical wireless communication (OWC) is expected to be a key component of future wireless communication networks, with a wide range of applications such as indoor visible-light communication (VLC) [...]
Cuiwei He, Chen Chen
doaj   +1 more source