Results 21 to 30 of about 274,699 (276)

Marker Codes Using the Decoding Based on Weighted Levenshtein Distance in the Presence of Insertions/Deletions

open access: yesIEEE Access, 2020
A random marker code is inserted into the information sequences periodically, and a novel symbol-level decoding algorithm considering the weighted Levenshtein distance (WLD) is designed for correcting insertions, deletions, as well as substitutions in ...
Yuan Liu   +4 more
doaj   +1 more source

Optimal deployment of large-scale wireless sensor networks based on graph clustering and matrix factorization

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
It is undeniable that there are a large number of redundant nodes in a wireless sensor network. These redundant nodes cause a colossal waste of resources and seriously threaten the life of the sensor network.
Hefei Gao, Qianwen Zhu, Wei Wang
doaj   +1 more source

Transmission Power Measurements for Wireless Sensor Nodes and their Relationship to the Battery Level [PDF]

open access: yes, 2005
In this work we focus on the new generation EYESIFXv2 [1] wireless sensor nodes by carrying out experimental measurements on power related quantities.
Bellettini, C.   +5 more
core   +2 more sources

An adaptive relay node selection algorithm based on opportunity

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
The collaborative relay network plays an important role in a smart grid application thanks to its high efficiency. However, energy and bandwidth management need to be further improved to extend network life cycle and reduce potential network segmentation.
Baoju Zhang   +4 more
doaj   +1 more source

Design and control of a bidirectional wireless charging system using GaN devices [PDF]

open access: yes, 2019
Most of the existing wireless power transfer system works in unidirectional with one-direction control signals. This paper presents a bidirectional wireless charging system with duplex communication method, which is not only able to achieve the two-way ...
Gu, Bowen   +4 more
core   +2 more sources

Antenna array design by a contraction adaptive particle swarm optimization algorithm

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
Massive multiple input multiple output (MIMO) has drawn intensive attention of researchers for solving huge data transmissions in the fifth generation wireless communication.
Xin Zhang   +3 more
doaj   +1 more source

Spectral Efficiency Improvement and Power Control Optimization of Massive MIMO Networks

open access: yesIEEE Access, 2021
Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication.
Xiu Zhang, Hao Qi, Xin Zhang, Liang Han
doaj   +1 more source

Wireless Power Transmission

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract In recent days, Wireless Power Transfer (WPT) and harvesting energy received lots of attentions due to the necessity of having a flexible, suitable and secure source of energy. With the explosion of wireless technologies including wireless sensor network (WSN) like internet of things, such intelligent systems had highlighted ...
V. Bhavya Keerthi   +2 more
openaire   +1 more source

Energy-Efficient Optimization for Wireless Information and Power Transfer in Large-Scale MIMO Systems Employing Energy Beamforming [PDF]

open access: yes, 2013
In this letter, we consider a large-scale multiple-input multiple-output (MIMO) system where the receiver should harvest energy from the transmitter by wireless power transfer to support its wireless information transmission.
Chen, Xianfu   +2 more
core   +1 more source

Investigation of a novel structure for 6PolSK-QPSK modulation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
Benefiting from the high spectrum efficiency and power efficiency, 6PolSK-QPSK (6-ary polarization-shift keying quadrature phase-shift keying) is a promising modulation format in coherent optical communication.
Yupeng Li   +3 more
doaj   +1 more source

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