Open AccessExperimental Performance Evaluation of POBICOS Middleware for Wireless Sensor Networks
Author(s) -
Jouni Hiltunen,
Mikko Ala-Louko,
Markus Taumberger
Publication year - 2012
Publication title -
isrn communications and networking
Language(s) - English
Resource type - Journals
eISSN - 2090-4363
pISSN - 2090-4355
DOI - 10.5402/2012/180369
Subject(s) - computer science , wireless sensor network , middleware (distributed applications) , cache , duty cycle , profiling (computer programming) , wireless , computer network , embedded system , energy consumption , key distribution in wireless sensor networks , wireless network , throughput , bandwidth (computing) , power consumption , distributed computing , operating system , power (physics) , engineering , physics , quantum mechanics , electrical engineering
The advances in the theory of wireless sensor networks have been remarkable during the past decades, but there is a lack of extensive experimental evaluations. In this paper we present performance-evaluation methods and results for POBICOS (platform for opportunistic behaviour in incompletely specified, heterogeneous object communities), which is an advanced middleware for wireless sensor networks (WSNs). The measurements concern energy consumption, duty cycle, and OS task profiling as well as communication characteristics such as round trip time (RTT) and throughput. In addition, a bandwidth analysis during a long-term experiment of fully functional POBICOS network and application is studied. Based on the evaluation results, power mode and data cache improvements are presented as well as CPU clock frequency optimizations.
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