Results 31 to 40 of about 104,021 (275)

Beam-steering metasurfaces assisted coherent optical wireless multichannel communication system

open access: yesNanophotonics, 2023
The metasurface based beam-steering devices with the advantages of large steering angles, arbitrary channels and ultra-compactness have played an important role for data allocation and exchange in the optical wireless communication.
Tao Jin   +13 more
doaj   +1 more source

Flip-OFDM for optical wireless communications

open access: yes2011 IEEE Information Theory Workshop, 2011
published in IEEE Information Theory Workshop, Paraty Brazil, Sept ...
Nirmal Fernando   +2 more
openaire   +3 more sources

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

open access: yes, 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.
Angelova, Maia   +2 more
core   +1 more source

Fusion of Multiple Pyroelectric Characteristics for Human Body Identification

open access: yesAlgorithms, 2014
Due to instability and poor identification ability of single pyroelectric infrared (PIR) detector for human target identification, this paper proposes a new approach to fuse the information collected from multiple PIR sensors for human identification ...
Wanchun Zhou   +4 more
doaj   +1 more source

Adaptive differential amplitude pulse-position modulation technique (DAPPM) using fuzzy logic for optical wireless communication channels [PDF]

open access: yes, 2012
In the past few years, people have become increasingly demanding for high transmission rate, using high-speed data transfer rate, the number of user increased every year, therefore the high-speed optical wireless communication link have become more
Bong, Siaw Wee
core   +1 more source

Tradeoff between compression ratio and decoding delay of distributed source coding for uplink transmissions in machine-type communication

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Rapid growth of machine-type communications devices challenges the future network with a significant aggregated data traffic. Distributed source coding is a promising technique that compresses data sources and decreases required aggregated data ...
Wen Wang   +3 more
doaj   +1 more source

Research on Underwater Wireless Optical Communication Channel Model and Its Application

open access: yesApplied Sciences, 2023
Underwater wireless optical communication (UWOC) is an emerging technology with wide-ranging applications in marine exploration, offshore industries, environmental monitoring, and underwater robotics.
Kai Sun, Yiyang Li, Zekai Han
doaj   +1 more source

Communication Efficient Federated Learning With Quantization-Aware Training Design

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
Model quantization is an effective method that can improve communication efficiency in federated learning (FL). The existing FL quantization protocols almost stay at the level of post-training quantization (PTQ), which comes at the cost of large ...
Xiang Fang   +4 more
doaj   +1 more source

When Will You Have a New Mobile Phone? An Empirical Answer From Big Data

open access: yesIEEE Access, 2016
When and why people change their mobile phones are important issues in mobile communications industry, because it will impact greatly on the marketing strategy and revenue estimation for both mobile operators and manufactures.
Qingli Ma   +4 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

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