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March 1, 2012IEEE Internet Computing653 citations

CoAP: An Application Protocol for Billions of Tiny Internet Nodes

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CBCarsten BormannACAngelo CastellaniZSZach Shelby

Key Points

  • To introduce the Constrained Application Protocol (CoAP), a lightweight web transfer protocol specifically designed for resource-constrained nodes and networks in the Internet of Things.
  • Adapted the Representational State Transfer (REST) architectural style to function efficiently in constrained network environments.
  • Engineered the protocol over the User Datagram Protocol (UDP) to eliminate the overhead and legacy complexity associated with conventional web protocols like HTTP.
  • Established a functional REST-based web transfer model optimized for constrained computing devices.
  • Achieved target application messaging capabilities with substantially reduced architectural and operational complexity relative to standard HTTP.

Abstract

The Constrained Application Protocol (CoAP) is a transfer protocol for constrained nodes and networks, such as those that will form the Internet of Things. Much like its older and heavier cousin HTTP, CoAP uses the REST architectural style. Based on UDP and unencumbered by historical baggage, however, CoAP aims to achieve its modest goals with considerably less complexity.

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Cite This Study

Bormann et al. (2012) studied this question.

synapsesocial.com/papers/6a0f60e6d8c5cf602efca96dhttps://doi.org/10.1109/mic.2012.29
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