Results 61 to 70 of about 11,394 (208)

BARI+: A Biometric Based Distributed Key Management Approach for Wireless Body Area Networks

open access: yesSensors, 2010
Wireless body area networks (WBAN) consist of resource constrained sensing devices just like other wireless sensor networks (WSN). However, they differ from WSN in topology, scale and security requirements.
Syed Muhammad Khaliq-ur-Rahman Raazi   +3 more
doaj   +1 more source

An Overview of Recent Wireless Technologies for IoT‐Enabled Smart Grids

open access: yesJournal of Electrical and Computer Engineering, Volume 2024, Issue 1, 2024.
Smart Grid is a way of providing bidirectional energy flow with the integration of latest communication technologies and advanced control methods to overcome the issues associated with the current power grid such as unidirectional power flow, resource wastage, reliability, security, enhanced quality, and increasing demand of energy.
Rashiqa Abdul Salam   +6 more
wiley   +1 more source

Postprocessing Time-Alignment Method of Power Angular Delay Profile for Automated mmWave WPAN Channel Sounding

open access: yesIEEE Open Journal of Instrumentation and Measurement
Accurate propagation channel measurements and modeling—encompassing both angular and delay characteristics—are fundamental to the design of millimeter wave (mmWave) communication systems.
Hiroaki Endo   +3 more
doaj   +1 more source

On the investigation of voltage controlled oscillator phase noise for IoT applications

open access: yesE3S Web of Conferences, 2016
Voltage controlled oscillator (VCO) is one of the key elements in radio frequency (RF) transceivers. A VCO working at 2.4 GHz and designed in CMOS technology is presented.
Haddad F., Rahajandraibe W., Ghorbel I.
doaj   +1 more source

IETF standardization in the field of the Internet of Things (IoT): a survey [PDF]

open access: yes, 2013
Smart embedded objects will become an important part of what is called the Internet of Things. However, the integration of embedded devices into the Internet introduces several challenges, since many of the existing Internet technologies and protocols ...
Carels, David   +7 more
core   +2 more sources

A CoAP-Based Network Access Authentication Service for Low-Power Wide Area Networks: LO-CoAP-EAP

open access: yesSensors, 2017
The Internet-of-Things (IoT) landscape is expanding with new radio technologies. In addition to the Low-Rate Wireless Personal Area Network (LR-WPAN), the recent set of technologies conforming the so-called Low-Power Wide Area Networks (LP-WAN) offers ...
Dan Garcia-Carrillo   +3 more
doaj   +1 more source

A 3D pyramid network for short ranged high data rate communications at 60 GHz [PDF]

open access: yes, 2004
At millimeter-wave frequencies, the propagation characteristics approximate to that of light and high attenuation is usually incurred in the presence of people and objects.
Lee, BS   +3 more
core   +2 more sources

Optimized Communication of Group Mobility in WPAN [PDF]

open access: yesInternational Journal of Computer Network and Information Security, 2016
ZigBee is a low cost, low-power consumption and long battery life network that is based on the IEEE 802.15.4 standard; which is most usually used to transfer low data rates information in the Wireless Personal Area Network (WPAN). In the Wireless Personal Area Network (WPAN) network, capability of sensor network and mobile network are combined that ...
Suman Lata, Naveen Goel
openaire   +1 more source

105 GHz Multipath Propagation Measurement and Comparison With 60 GHz in Office Desk Environment for Ultra-High Speed Sub-THz WPAN Systems

open access: yesIEEE Open Journal of Vehicular Technology
This study presents wideband propagation measurements of 105 GHz multipath characteristics, encompassing a full 360$^\circ $ in a real office desktop environment.
Masaki Maeda   +3 more
doaj   +1 more source

Implementation of RTOS to the WSN node [PDF]

open access: yes, 2012
Bezdrátové senzorické sieťe zväčša používajú `event-driven` operačné systémy. Táto práca diskutuje výhody nevýhody použitia RTOS v bezdrátových senzorických sieťach.
Ulianko, Michal
core  

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