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CoCoA+: an advanced congestion control mechanism for CoAP

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10.1016/j.adhoc.2015.04.007
 
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hdl:2117/84808

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Betzler, August
Gómez Montenegro, CarlosMés informacióMés informacióMés informació
Demirkol, Ilker SeyfettinMés informacióMés informacióMés informació
Paradells Aspas, JosepMés informacióMés informacióMés informació
Document typeArticle
Defense date2015-10-01
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
ProjectARQUITECTURA DE INTERNET BASADA EN SERVICIOS ATOMICOS PARA REDES RESTRINGIDAS Y UBICUAS (MINECO-TEC2012-32531)
Abstract
The Constrained Application Protocol (CoAP) has been designed by the Internet Engineering Task Force (IETF) for Internet of Things (IoT) devices. Due to the limited radio channel capacities and hardware resources of such devices, congestion can be a serious problem. CoAP addresses this important issue with a basic congestion control mechanism. CoCoA, an Internet-Draft proposal, introduced alternative congestion control mechanisms for CoAP. Yet, there has been limited evaluation of these congestion control mechanisms in the literature. In this paper, we assess the methods applied in CoCoA in detail and propose improvements to address the shortcomings observed in the congestion control mechanisms. We carry out simulations to compare the congestion control performance for default CoAP, CoCoA, and our new proposal, CoCoA+, in a variety of network topologies and use cases. The results show that CoCoA+ outperforms default CoAP and achieves better results than CoCoA in the majority of considered cases.
CitationBetzler, A., Gomez, C., Demirkol, I., Paradells, J. CoCoA+: an advanced congestion control mechanism for CoAP. "Ad hoc networks", 01 Octubre 2015, vol. 33, p. 126-139. 
URIhttp://hdl.handle.net/2117/84808
DOI10.1016/j.adhoc.2015.04.007
ISSN1570-8705
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S1570870515000888
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