Results 71 to 80 of about 2,874 (207)

Dynamic Mode Decomposition of Geostrophically Balanced Motions From SWOT Cal/Val in the Separated Gulf Stream

open access: yesEarth and Space Science, Volume 12, Issue 8, August 2025.
Abstract The decomposition of oceanic flow into its geostrophically balanced and unbalanced motions carries theoretical and practical significance for the oceanographic community. These two motions have distinct dynamical characteristics and affect the transport of tracers differently from one another.
Takaya Uchida   +10 more
wiley   +1 more source

Analytical Model of Large Data Transactions in CoAP Networks

open access: yesSensors, 2014
We propose a novel analytical model to study fragmentation methods in wireless sensor networks adopting the Constrained Application Protocol (CoAP) and the IEEE 802.15.4 standard for medium access control (MAC).
Alessandro Ludovici   +3 more
doaj   +1 more source

Securing the Future: Lightweight Blockchain Solutions for IIoT and IoT Networks

open access: yesSECURITY AND PRIVACY, Volume 8, Issue 4, July/August 2025.
ABSTRACT This paper presents an innovative lightweight blockchain architecture tailored for Internet of Things (IoT) and Industrial Internet of Things (IIoT) applications. Building upon Byzantine Fault Tolerance (BFT) and Directed Acyclic Graph (DAG) technologies, our proposed BFT‐DAG framework introduces key enhancements to optimize its performance in
Fatemeh Stodt   +4 more
wiley   +1 more source

Improving Packet Delivery Performance of Publish/Subscribe Protocols in Wireless Sensor Networks

open access: yesSensors, 2013
MQTT-S and CoAP are two protocols able to use the publish/subscribe model in Wireless Sensor Networks (WSNs). The high scalability provided by the publish/subscribe model may incur a high packet loss and therefore requires an efficient reliability ...
Ernesto García Davis   +2 more
doaj   +1 more source

CoAP (Constrained Application Protocol)

open access: yes, 2020
Postoji puno bežičnih protokola za komunikaciju između uređaja, ali većina manjih uređaja nemaju učinkovit način komunikacije sa ograničenim resursima. Zato je IETF razvila lightweight protokol CoAP.
Pavlović, Ivan
core  

WireGuard for Securing Constrained Application Protocol for IoT Devices (CoAP) [PDF]

open access: yes, 2021
With the ever-rising popularity of Internet of Things (IoT) devices, the issue of securing communication between the constrained nodes in the IoT network while still achieving adequate speed and performance is as significant as always.
Kazakova, Evgenia
core  

Experimental Evaluation of Unicast and Multicast CoAP Group Communication

open access: yesSensors, 2016
The Internet of Things (IoT) is expanding rapidly to new domains in which embedded devices play a key role and gradually outnumber traditionally-connected devices. These devices are often constrained in their resources and are thus unable to run standard
Isam Ishaq   +3 more
doaj   +1 more source

Real Performance Evaluation On MQTT and COAP Protocol in Ubiquitous Network Robot Platform (UNRPF) for Disaster Multi-robot Communication

open access: yesEmitter: International Journal of Engineering Technology, 2018
Disaster multi-robot has a significant role in a disaster area to do many tasks like detection of fire, search and rescue of victims, etc. It needs to build good communication between the operator and multi-robot and among multi-robot themselves to ...
Muhammad Ikrar Yamin   +2 more
doaj   +1 more source

Design, Implementation, and Evaluation of an Embedded CoAP Proxy Server for 6LoWPAN

open access: yesIEEE Access
Proxy servers are widely used in many contexts since they can enhance performance, security, and access control for production networks. The Constrained Application Protocol (CoAP), the de facto standard of Internet of Things (IoT) communications ...
Ismael Amezcua Valdovinos   +3 more
doaj   +1 more source

CoAP over BP for a Delay-Tolerant Internet of Things

open access: yes, 2015
International audienceWith the advent of the Internet of Things (IoT) a myriad of new devices will become part of our everyday life. Constrained Application Protocol (CoAP), and its extensions, are specifically designed to address the integration of ...
Mael Auzias   +5 more
core   +1 more source

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