Why are real WSNs so hard for us to achieve? Jan Beutel, ETH Zurich.

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Why are real WSNs so hard for us to achieve? Jan Beutel, ETH Zurich

2 “Proof-of-Concept” Deployment Experience [Koen Langendoen, TU Delft] [Gilmann Tolle, UC Berkeley][Prabal Dutta, UC Berkeley]

3 Performance is Poor – Causes Are Not Understood [Phil Levis, Stanford]

Is it just generally painful?

Are we doing things the wrong way?

Were we promising too much?

7 My Contribution – WSN Deployment Survey A survey on the success, failure and generally experience in wireless sensor network deployments. Online at – Contact –Jan Beutel, ETH Zurich – Prize – Win a Free Ski Weekend in the Alps –Drawing is closing on December 15, 2007.

8 Outrageous Opinions Why are... –we not applying the same rigor and methods we teach to students in WSN design/deployment practice? Code reviews, calibration, comparable/repetitive experiments... –we cramming more and more into tiny microcontrollers, operating them beyond limits, wondering why last minute quick-fixes fail? The embedded industry designs and scales architecture exactly for the required performance/complexity! –so many computer scientists building (lower layer) MAC protocols and not the radio designers/manufacturers?