Results 1 to 10 of about 15,517 (207)

K-Means Clustering-Based Safety System in Large-Scale Industrial Site Using Industrial Wireless Sensor Networks [PDF]

open access: yesSensors, 2022
A large number of workers and heavy equipment are used in most industrial sizes, and the prevention of safety accidents is one of the most important issues. Therefore, although a number of systems have been proposed to prevent accidents, existing studies
Dongyeong Seo   +3 more
doaj   +2 more sources

An Efficient and Reliable Algorithm for Wireless Sensor Network [PDF]

open access: yesSensors, 2021
In wireless sensor networks (WSN), flooding increases the reliability in terms of successful transmission of a packet with higher overhead. The flooding consumes the resources of the network quickly, especially in sensor networks, mobile ad-hoc networks,
Faheem Khan   +5 more
doaj   +2 more sources

Energy Efficient Multicast Communication in Cognitive Radio Wireless Mesh Network [PDF]

open access: yesSensors, 2022
Multicasting is a basic networking primitive used in a wide variety of applications that is also true for cognitive radio-based networks. Although cognitive radio technology is considered to be the most promising technology to deal with spectrum scarcity,
Imran Baig   +3 more
doaj   +2 more sources

All-Optical Wavelength Multicasting in Quadruple Resonance-Split Coupled Silicon Microring Cavity

open access: yesIEEE Photonics Journal, 2018
We demonstrate an all-optical four-channel wavelength multicasting in a coupled silicon microring resonator system. The scheme is based on two-photon-absorption-induced free carrier dispersion in silicon.
Awanish Pandey, Shankar Kumar Selvaraja
doaj   +3 more sources

Orbital angular momentum and beyond in free-space optical communications [PDF]

open access: yesNanophotonics, 2021
Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical manipulation, microscopy, imaging, metrology, sensing, quantum science,
Wang Jian   +5 more
doaj   +2 more sources

Wake-Up Receiver-Based Routing for Clustered Multihop Wireless Sensor Networks [PDF]

open access: yesSensors, 2022
The Wireless Sensor Network (WSN) is one of the most promising solutions for the supervision of multiple phenomena and for the digitisation of the Internet of Things (IoT).
Maximilian Weber   +3 more
doaj   +2 more sources

Massive MIMO Multicasting in Noncooperative Cellular Networks [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2014
We study the massive multiple-input multiple-output (MIMO) multicast transmission in cellular networks where each base station (BS) is equipped with a large-scale antenna array and transmits a common message using a single beamformer to multiple mobile ...
Meixia Tao, Xiaodong Wang
exaly   +3 more sources

Simultaneous Wireless Power Transfer and Secure Multicasting in Cooperative Decode-and-Forward Relay Networks [PDF]

open access: yesSensors, 2017
In this paper, we investigate simultaneous wireless power transfer and secure multicasting via cooperative decode-and-forward (DF) relays in the presence of multiple energy receivers and eavesdroppers.
Jong-Ho Lee, Illsoo Sohn, Yong-Hwa Kim
doaj   +2 more sources

Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber [PDF]

open access: yesScientific Reports, 2017
We propose and numerically demonstrate a conversion and multicasting scheme of orbital angular momentum (OAM) states by using N-core supermode fiber (NCSF), where the topological charges of converted OAM states mainly depend on the injected OAM state and
Guang-hao Shao   +4 more
doaj   +2 more sources

Design of A Fuzzy-controlled Energy - Efficient Multicast Scheduler (FEMS) For SDWSN [PDF]

open access: yesJournal of Information Technology Management, 2021
Multicasting is an important operation in software-defined wireless sensor networks (SDWSNs). In this operation, a group of nodes specified by their unique node identification numbers is supposed to receive the same multicast message at the approximately
Anuradha Banerjee
doaj   +1 more source

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