Publications:Real-time Support in Adaptable Middleware for Heterogeneous Sensor Networks

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Title Real-time Support in Adaptable Middleware for Heterogeneous Sensor Networks
Author Edison Pignaton de Freitas and Marco Aurélio Wehrmeister and Carlos Eduardo Pereira and Tony Larsson
Year 2008
PublicationType Conference Paper
Journal
HostPublication 2008 International Multiconference on Computer Science and Information Technology
DOI http://dx.doi.org/10.1109/IMCSIT.2008.4747304
Conference International Multiconference on Computer Science and Information Technology (IMCSIT 2008), 20-22 Oct. 2008, Wisla, Poland
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239399
Abstract The use of sensor networks in different kinds of sophisticated applications is emerging due to several advances in sensor/embedded system technologies. However, the integration and coordination of heterogeneous sensors is still a challenge, especially when the target application environment is susceptible to changes. Such systems must adapt themselves in order to fulfil increasing requirements. Especially the handling of real-time requirements is a challenge in this context in which different technologies are applied to build the overall system. Moreover, these changing scenarios require services located at different places during the system runtime. Thus a support for adaptability is needed. Timing and precision requirements play an important role in such scenarios. Besides, QoS management must provide the necessary support to offer the flexibility demanded in such scenarios. In this paper we present the real-time perspective of a middleware that aims at providing the support required by sophisticated heterogeneous sensor network applications. We propose to address the real-time concerns by using the OMG Data Distribution Service for Real-time Systems approach, but with a more flexible approach that fits in the heterogeneous environment in which the proposed middleware is intended to be used. We also present a coordination protocol to support the proposed approach.