Results 31 to 40 of about 8,307 (203)

Performance Analysis of LDPC-Coded OFDM in Underwater Wireless Optical Communications

Photonics, 2023
The performance of Low-Density Parity-Check (LDPC)-coded Orthogonal Frequency Division Multiplexing (OFDM) is investigated over turbulence channels in underwater wireless optical communications (UWOC).
Jianzhong Guo, Jinpeng Xiao, Jing Chen, Xin Shan, Dejin Kong, Yan Wu, Yong Ai   +6 more
doaj   +1 more source

Performance of Spatial Diversity DCO-OFDM in a Weak Turbulence Underwater Visible Light Communication Channel [PDF]

, 2020
The performance of underwater visible light communication (UVLC) system is severely affected by absorption, scattering and turbulence. In this article, we study the performance of spectral efficient DC-biased optical orthogonal frequency division ...
Ahmad, Zahir, He, Ning, Jiang, Hongyan, Popoola, Wasiu, Qiu, Hongbing, Rajbhandari, Sujan   +5 more
core   +3 more sources

Underwater Optical Path Loss after Passage of a Tropical Storm

Applied Sciences, 2020
Underwater wireless optical communications (UWOCs) have attracted considerable attention in recent years as an alternative means for acoustic communication.
Peter C. Chu, Chenwu Fan
doaj   +1 more source

High Speed Visible Light Communication Using Blue GaN Laser Diodes [PDF]

, 2016
GaN-based laser diodes have been developed over the last 20 years making them desirable for many security and defence applications, in particular, free space laser communications.
Czernecki, R., Giuliano, G., Kelly, A.E., Laycock, L., Leszczyński, M., Marona, L., Najda, S.P., Perlin, P., Rowe, D., Suski, T., Targowski, G., Viola, S., Watson, M. A., Watson, S., White, H., Wisniewski, P.   +15 more
core   +2 more sources

Orbital Angular Momentum-based Space Division Multiplexing for High-capacity Underwater Optical Communications [PDF]

, 2016
To increase system capacity of underwater optical communications, we employ the spatial domain to simultaneously transmit multiple orthogonal spatial beams, each carrying an independent data channel.
Ahmed, Nisar, Arbabi, Amir, Arbabi, Ehsan, Ashrafi, Solyman, Cao, Yinwen, Faraon, Andrei, Kamali, Seyedeh Mahsa, Li, Long, Liu, Cong, Ren, Yongxiong, Tur, Moshe, Wang, Zhe, Willner, Alan E., Willner, Asher J., Xie, Guodong, Yan, Yan, Zhao, Zhe   +16 more
core   +4 more sources

Solution for Self-Interference of NOMA-Based Wireless Optical Communication System in Underwater Turbulence Environment

IEEE Access, 2023
Non-orthogonal multiple access (NOMA) is a multiple access technology of great potential and it has superior performance in underwater wireless optical communications (UWOC).
Yanjun Liang, Hongxi Yin, Lianyou Jing, Xiuyang Ji, Jianying Wang   +4 more
doaj   +1 more source

An Optical Differential Method for Underwater Wireless Communication in Turbid Environments

Photonics
Underwater optical communication has emerged as an essential tool for exploring oceanography and marine resources for underwater vehicles or robots in recent years.
Xiaoqing Tian, Feng Jiang, Hongfei Yu, Hang Xu, Jiyong Wang   +4 more
doaj   +1 more source

Underwater Optical Wireless Communications with Chromatic Dispersion and Time Jitter

Computation, 2019
The obsolete communication systems used in the underwater environment necessitates the development and use of modern telecommunications technologies.
George D. Roumelas, Hector E. Nistazakis, Argyris N. Stassinakis, Christos K. Volos, Andreas D. Tsigopoulos   +4 more
doaj   +1 more source

Parametric hologram optimization for enhanced underwater wireless optical communication

Optics Express, 2022
The performance of the underwater optical communication (UWOC) systems was primarily limited by the low optical transmission efficiency due to the beam divergence and water interference. It has been proved in our previous works that holographic beam shaping can effectively increase the optical transmission efficiency and therefore the communication ...
Jiewen Nie, Lei Tian, Feng Zhang, Xiaobo Li, Haining Yang   +4 more
openaire   +2 more sources

Underwater Drone-Enabled Wireless Communication Systems for Smart Marine Communications: A Study of Enabling Technologies, Opportunities, and Challenges

Drones
Underwater drones such as autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs) are revolutionizing underwater operations and are essential for advanced marine applications like environmental monitoring, deep-sea exploration, and ...
Sarun Duangsuwan, Katanyoo Klubsuwan
doaj   +1 more source