Sensors 2012, 12(6), 7648-7668; doi:10.3390/s120607648
Article

A Communication Model to Integrate the Request-Response and the Publish-Subscribe Paradigms into Ubiquitous Systems

Department of Computer Languages and Systems, E. T. S. I. I. T. University of Granada, C/ Periodista Daniel Saucedo Aranda S/N, 18071 Granada, Spain
* Author to whom correspondence should be addressed.
Received: 9 May 2012; in revised form: 31 May 2012 / Accepted: 4 June 2012 / Published: 7 June 2012
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Abstract: The Request-Response (RR) paradigm is widely used in ubiquitous systems to exchange information in a secure, reliable and timely manner. Nonetheless, there is also an emerging need for adopting the Publish-Subscribe (PubSub) paradigm in this kind of systems, due to the advantages that this paradigm offers in supporting mobility by means of asynchronous, non-blocking and one-to-many message distribution semantics for event notification. This paper analyzes the strengths and weaknesses of both the RR and PubSub paradigms to support communications in ubiquitous systems and proposes an abstract communication model in order to enable their seamless integration. Thus, developers will be focused on communication semantics and the required quality properties, rather than be concerned about specific communication mechanisms. The aim is to provide developers with abstractions intended to decrease the complexity of integrating different communication paradigms commonly needed in ubiquitous systems. The proposal has been applied to implement a middleware and a real home automation system to show its applicability and benefits.
Keywords: ubiquitous systems; communication paradigms; middleware design; quality properties; abstract models

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MDPI and ACS Style

Rodríguez-Domínguez, C.; Benghazi, K.; Noguera, M.; Garrido, J.L.; Rodríguez, M.L.; Ruiz-López, T. A Communication Model to Integrate the Request-Response and the Publish-Subscribe Paradigms into Ubiquitous Systems. Sensors 2012, 12, 7648-7668.

AMA Style

Rodríguez-Domínguez C, Benghazi K, Noguera M, Garrido JL, Rodríguez ML, Ruiz-López T. A Communication Model to Integrate the Request-Response and the Publish-Subscribe Paradigms into Ubiquitous Systems. Sensors. 2012; 12(6):7648-7668.

Chicago/Turabian Style

Rodríguez-Domínguez, Carlos; Benghazi, Kawtar; Noguera, Manuel; Garrido, José Luis; Rodríguez, María Luisa; Ruiz-López, Tomás. 2012. "A Communication Model to Integrate the Request-Response and the Publish-Subscribe Paradigms into Ubiquitous Systems." Sensors 12, no. 6: 7648-7668.

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