Results 51 to 60 of about 464 (128)

A decentralized scheduling algorithm for time synchronized channel hopping

open access: yesEAI Endorsed Transactions on Mobile Communications and Applications, 2011
Time Synchronized Channel Hopping (TSCH) is an existing Medium Access Control scheme which enables robust communication through channel hopping and high data rates through synchronization.
Andrew Tinka   +3 more
doaj   +1 more source

LoRaSync: Energy efficient synchronization for scalable LoRaWAN

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 35, Issue 2, February 2024.
LoRaSync is an energy‐efficient synchronization mechanism designed to support the implementation of slotted medium access control protocols for LoRa networks. Its robust design is based on real clock drift measurements, and a synchronization beacon skipping strategy is used in order to save power on the end‐devices Abstract Low‐power wide‐area networks
Laurent Chasserat   +2 more
wiley   +1 more source

Energy Efficient Uplink MAC Protocol for M2M Devices

open access: yesIEEE Access, 2019
To enable connectivity between a massive number of devices on the Internet of Things (IoT) paradigm, machine-to-machine (M2M) communication is implied. The key feature of emerging and ad hoc networks, such as M2M communication, is a low-complexity medium
Anum Ali   +2 more
doaj   +1 more source

Handshake mechanism selection in MANETs with directional antennas: A new evaluation view

open access: yesElectronics Letters, Volume 60, Issue 4, February 2024.
This letter theoretically derives the upper and lower bounds of neighbour discovery time of the network for both 1‐way and 2‐way. In order to better select the appropriate handshaking mechanism, a new evaluation parameter, the expected time for a node to complete mutual discovery with its neighbours, is proposed, which is shown to be approximately ...
Huiyuan Xu   +4 more
wiley   +1 more source

Dissecting wireless body area networks routing protocols: Classification, comparative analysis, and research challenges

open access: yesInternational Journal of Communication Systems, Volume 37, Issue 1, 10 January 2024.
WBANs are applied in E‐Healthcare systems, extract the physiological parameters through the implanted (in‐body) and/or wearable(on‐body) sensors applied to the human body, and route them to the remote server in a systematized and well‐grounded manner.
Bhawna Narwal   +5 more
wiley   +1 more source

Dynamic Frame Update Policy for UHF RFID Sensor Tag Collisions

open access: yesSensors, 2020
The current growing demand for low-cost edge devices to bridge the physical–digital divide has triggered the growing scope of Radio Frequency Identification (RFID) technology research.
Laura Arjona   +3 more
doaj   +1 more source

Adaptive Transmission Control Considering Available Channels Difference Among Terminals in Satellite IoT Systems Using CRDSA/IRSA

open access: yesIEEE Access
The use of Low Power Wide Area (LPWA) networks in the 920-MHz band, which are compatible with terrestrial network devices, is being explored for a satellite Internet-of-Things (IoT) system.
Hiraku Okada   +6 more
doaj   +1 more source

The Age-of-Information Distribution in Slotted ALOHA

open access: yesIEEE Access
Age-of-Information (AoI) is a new performance metric for critical networked cyber-physical systems (CPS), where performance depends on how quickly fresh data is received in update packets.
Dieter Fiems, Alexey Vinel
doaj   +1 more source

Performance Analysis of a Novel Hybrid S-ALOHA/TDMA Protocol for Beta Distributed Massive MTC Access

open access: yesSensors, 2017
Simultaneous random access of massive machine type communications (MTC) devices are expected to cause congestion in the radio access network. Not only the performance of MTC, but the coexisting human to human (H2H) communications would also degrade ...
Nannan Sui   +3 more
doaj   +1 more source

Direct-to-Satellite IoT Slotted Aloha Systems with Multiple Satellites and Unequal Erasure Probabilities. [PDF]

open access: yesSensors (Basel), 2021
Tondo FA   +4 more
europepmc   +1 more source

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