Results 81 to 90 of about 7,697,882 (172)

Cooperative communication in wireless local area networks [PDF]

open access: yes, 2010
The concept of cooperative communication has been proposed to improve link capacity, transmission reliability and network coverage in multiuser wireless communication networks.
Abdel Gawad, S.G.
core  

Modular Plug-and-Play Power Resources for Energy-Aware Wireless Sensor Nodes

open access: yes
Wireless sensors are normally powered by non-rechargeable batteries, but these must be replaced when depleted. Recent developments in energy harvesting technology allow sensors to be powered by environmental energy where it is present, but the wide range
Weddell, Alex S.   +3 more
core   +1 more source

Resource Aware Sensor Nodes in Wireless Sensor Networks

open access: yes, 2005
Wireless sensor networks are continuing to receive considerable research interest due, in part, to the range of possible applications. One of the greatest challenges facing researchers is in overcoming the limited network lifetime inherent in the small ...
Merrett, Geoff V.   +3 more
core   +1 more source

Enhancing Uplink Communication in Wireless Powered Communication Networks Through Rate-Splitting Multiple Access and Joint Resource Optimization

open access: yesMathematics
Wireless powered communication networks (WPCNs) provide a sustainable solution for energy-constrained IoT devices by enabling wireless energy transfer (WET) in the downlink and wireless information transmission (WIT) in the uplink.
Iqra Hameed   +3 more
doaj   +1 more source

Pinching Antenna-Aided Wireless Powered Communication Networks

open access: yesIEEE Wireless Communications Letters
In this letter, we investigate a novel pinching antenna (PA)-aided wireless powered communication network (WPCN), in which multiple PAs are activated along a waveguide to establish robust line-of-sight links with multiple devices. Both time division multiple access (TDMA) and non-orthogonal multiple access (NOMA) protocols are considered in the PA-WPCN.
Yixuan Li 0004   +3 more
openaire   +3 more sources

How Beyond-5G and 6G Makes IIoT and the Smart Grid Green—A Survey

open access: yesSensors
The convergence of next-generation wireless communication technologies and modern energy infrastructure presents a promising path toward sustainable and intelligent systems. This survey explores how beyond-5G and 6G communication technologies can support
Pal Varga   +5 more
doaj   +1 more source

Theoretical Development and Mathematical Formulation of Holographic Intelligent Surfaces with Magnetic Energy Harvesting

open access: yesTelecom
This paper proposes a novel framework integrating Holographic Intelligent Surfaces (HISs) with magnetic energy harvesting at the source node to enable energy-efficient wireless communication.
Ghaffer Iqbal Kiani
doaj   +1 more source

Modern mine communication technology and system

open access: yesGong-kuang zidonghua, 2013
The paper proposed coal mine communication technology system which was consisted of mine wired dispatching communication system, mine mobile communication system, mine broadcast communication system and mine rescue communication system.
SUN Ji-ping
doaj  

Information Managed Wireless Sensor Networks with Energy Aware Nodes

open access: yes, 2005
Wireless sensor networks are continuing to receive considerable research interest. The energy constraint inherent in the small battery powered nodes presents a considerable problem, and much effort is being put into reducing the power consumption.
Merrett, Geoff   +3 more
core   +1 more source

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