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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Evaluation of an Electronically Switched Directional Antenna for Real-World Low-Power Wireless Networks
verfasst von : Erik Öström, Luca Mottola, Thiemo Voigt
Erschienen in: Real-World Wireless Sensor Networks
Verlag: Springer Berlin Heidelberg
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We present the real-world evaluation of
Spida
, an electronically switched directional antenna. Compared to most existing work in the field,
Spida
is practical as well as inexpensive. We interface
Spida
with an off-the-shelf sensor node which provides us with a fully working real-world prototype. We assess the performance of our prototype by comparing the behavior of
Spida
against traditional omni-directional antennas. Our results demonstrate that the
Spida
prototype concentrates the radiated power only in given directions, thus enabling increased communication range at no additional energy cost. In addition, compared to the other antennas we consider, we observe more stable link performance and better correspondence between the link performance and common link quality estimators.