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This paper describes a wireless experimentation framework for studying dynamic spectrum access mechanisms and an experiment that showcases its capabilities. The framework was built on COSMOS, an advanced wireless testbed designed to support real-world experimentation of next generation wireless technologies and applications. Our deployed framework supports experimentation over a large number of wireless networks, with a PUB-SUB based network interaction structure, based on the Collaborative Intelligent Radio Networks (CIRN) Interaction Language (CIL) developed by DARPA for the Spectrum Collaboration Challenge (SC2). As such, it enables interaction and message exchanges between the networks for the purposes of coordinating spectrum use. For our experiment, the message exchanges are aimed primarily for, but not limited to, Spectrum Consumption Model (SCM) messages. RF devices/systems use SCM messages which contain detailed information about their wireless transmission characteristics (i.e., spectrum mask, frequency, bandwidth, power and location) to determine their operational compatibility (non-interference) with prior transmitters and receivers, and to dynamically determine spectrum use characteristics for their own transmissions.
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Experimenting in the Material World and on Paper in sixteenth-century France
Hands-on experimentation did not begin in the natural scientific laboratory of the nineteenth century; it is instead a characteristic part of craft processes wherever and whenever they have been carried out – whether the bronze hearths of the pre-historic Near East, the furniture ateliers of the Ancien Régime, or in the kilns of the Saintonge, where Bernard Palissy labored so hard to imitate porcelain. A contemporary manuscript, BnF Ms. Fr. 640, gives remarkable insight into this constant experimentation of the artisan in the workshop. It also highlights the experimentation on paper that Palissy and other craftspeople engaged in during the sixteenth century.
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- Award ID(s):
- 1734596
- PAR ID:
- 10175793
- Date Published:
- Journal Name:
- Techne
- Volume:
- 47
- ISSN:
- 2534-5168
- Page Range / eLocation ID:
- 18-29
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.4000/techne.1424
