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Demo Abstract: Distributed and Synchronized Measurements with FLOCKLAB
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lim, Roman Walser, Christoph Ferrari, Federico Zimmerling, Marco Beutel, Jan |
| Copyright Year | 2012 |
| Abstract | 1 Motivation and Overview Developing, testing, debugging, and evaluating communication protocols for low-power wireless networks is a long and cumbersome task. Simulators can be helpful in the early stages of development, but their models of hardware components and the wireless channel are often rather simplistic and hence cannot substitute experiments on real sensor node platforms. The resources available on common platforms are however very limited, and so are the possibilities for non-intrusive debugging and testing. With most existing testbeds it is only possible to collect information from the serial port, which requires adding highly intrusive logging statements that alter the timing behavior of the software running on the nodes. This is particularly detrimental to the operation of time-critical components, such as radio drivers, media access control (MAC) protocols, and certain flooding protocols [2], hindering their testbed-assisted development. To overcome the limitations of current testbeds, we have been developing the FLOCKLAB testbed over the past years. This demo abstract describes the architecture of FLOCKLAB and highlights the benefits it brings for non-intrusive testing and profiling of sensor network protocols and applications. For example, it is possible to take synchronized power measurements and capture changes in the state of General Purpose Input/Output (GPIO) pins on every FLOCKLAB node simultaneously. The FLOCKLAB architecture is highly scalable and allows for easy integration of future node platforms. As FLOCKLAB is publicly accessible, the demonstration will provide a hands-on experience for potential testbed users. 2 The FLOCKLAB Testbed FLOCKLAB consists of several observer nodes (currently 30) that are connected to a server through a wired or wireless local area network (LAN). The observer nodes are deployed both indoors and outdoors of an ETH office building. Compared with a typical sensor node, a FLOCKLAB observer is more powerful: it is based on a Gumstix Verdex pro XL6P that features a 600MHz XScale processor, 128MB SDRAM, 32MB flash, and runs OpenEmbedded Linux. Sensor nodes, called targets, are attached to the observers through target adapter boards; up to four targets can be attached to a single observer, as shown in Fig. 1. This approach |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.tik.ee.ethz.ch/file/09466583123c9e1fed96c670ff267f9e/flocklab-demo.pdf |
| Alternate Webpage(s) | http://www.tik.ee.ethz.ch/~beutel/pub/LWFZB2012a.pdf |
| Alternate Webpage(s) | http://www.tik.ee.ethz.ch/~jbeutel/pub/LWFZB2012a.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
