Group Communication for the Constrained Application Protocol (CoAP)

Rahman, Akbar; Dijk, Esko

doi:10.17487/rfc7390

Cited by 73 publications

(4 citation statements)

References 12 publications

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“…It is worth noting that the WPC is powered by the same battery used to power the actuator (with a proper power adapter). From a technological point of view, the WPC is built upon an IoT-compliant protocol stack, based on the constrained application protocol (CoAP) Group Communication [22] i. e. a communication in which two or more wireless hops are needed to convey information from a source to a destination that cannot communicate directly. Intermediate nodes act as a relay to forward messages between those nodes.…”

Section: Methodology and Research Designmentioning

confidence: 99%

The effectiveness of an internet of things-aware smart ventilated insulation system

et al. 2018

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The considerable thicknesses of common insulation systems, applied to the internal or external building envelope, can be inappropriate in the Mediterranean climates for improving buildings' energy efficiency and their internal comfort at the same time; in fact, the high thicknesses of insulating material provided by legislation standards can be cause of environments' overheating and formation of condensation. In this framework, the S-MUnSTa system is an innovative dynamic ventilated insulation system able to overcome condensation and overheating phenomena, also exploiting Internet of Things technologies; the main characteristic of the proposed smart insulation is that the ventilated external layer is equipped with dynamic valves of insulating material, for opening and closing the air channel, with the aim to optimize the thermal performance. In order to guarantee the expected performance of the system, as it has been patented, in this paper an innovative fixing system to install the insulating panels is presented. This new method allows a rapid and easy installation, without any specialization required and with low maintenance costs.

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Section: Methodology and Research Designmentioning

confidence: 99%

The effectiveness of an internet of things-aware smart ventilated insulation system

et al. 2018

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“…As shown in Section 5, OSCORE protects requests and responses using partially encrypted messages. It also uses CoAP as the communication protocol, which supports requests to an IP multicast group [67]. However, protecting group messages with OSCORE [90] entails challenges such as handling, distributing, and updating keys.…”

Section: Attribute-based Encryptionmentioning

confidence: 99%

Securing IIoT using Defence-in-Depth: Towards an End-to-End secure Industry 4.0

Mosteiro-Sanchez

Barceló

Astorga

et al. 2020

Journal of Manufacturing Systems

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“…Several improvements on top of the CoAP protocol have already been completed and published as RFCs, including the previously mentioned Observe, Constrained RESTful Environments (CoRE) Link Format (RFC 6690) [20], Group Communication for the Constrained Application Protocol (CoAP) (RFC 7390) [18], Block-Wise Transfers in the Constrained Application Protocol (CoAP) (RFC 7959) [2], and PATCH and FETCH Methods for the Constrained Application Protocol (CoAP) (RFC 8132) [6].…”

Section: Ietf Rfcsmentioning

confidence: 99%

Enhanced publish/subscribe in CoAP

Iglesias-Urkia

Casado-Mansilla

Mayer

et al. 2018

Proceedings of the 8th International Conference on the Internet of Things

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In the current Internet of Things (IoT) all sorts of devices and objects with diverse capabilities are being connected to the Internet and the Web. Consequently, new lightweight network protocols are also being developed to connect resourceconstrained devices or networks with each other. One of these protocols is the Constrained Application Protocol, which provides a REST architecture to resource and network-constrained devices. Besides the RESTful client-server paradigm, CoAP supports a publish-subscribe model thanks to its Observe extension which mimics some of MQTT's functionalities. However, this extension has some limitations in the subscription mechanism. Hence, this paper proposes several enhancements that define new CoAP options and response codes for such mechanisms. Furthermore, a theoretical comparison of the current CoAP capabilities against the new possibilities is also provided. For that, an specific use case is proposed, and a comparison in terms of the overhead required to exchange payloads and to subscribe to state change notifications on resources.

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Group Communication for the Constrained Application Protocol (CoAP)

Abstract: The Constrained Application Protocol (CoAP) is a specialized web transfer protocol for constrained devices and constrained networks.

Cited by 73 publications

References 12 publications

The effectiveness of an internet of things-aware smart ventilated insulation system

The effectiveness of an internet of things-aware smart ventilated insulation system

Securing IIoT using Defence-in-Depth: Towards an End-to-End secure Industry 4.0

Enhanced publish/subscribe in CoAP

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