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Jovan Radak*, Bogdan Pavkovic, Franck Rousseau, Ivan Stojmenovic** (*INRIA Lille-Nord Europe)(**University of Novi Sad, Serbia)

Emulation of large scale wireless sensor networks: from real neighbors to imaginary destination

Poster paper, MobiHoc 2011. Paris, France, May 16-19, 2011

Monday 16 May 2011

Setting up experimental testbed of large scale wireless sensor networks requires huge cost, space and human resources. The largest such existing system is deployed in a mountain in China with about 1000 sensors.
Due to limited access to such infrastructures, vast majority of existing theoretical and simulation studies on georouting appears detached from experimental studies in real environments, and a more affordable approach is needed to provide preliminary insights on network protocols performance.
To overcome the need for significant number of sensors required to perform a realistic experiment, and/or to experiments with high density networks, we introduce a novel approach: emulation by using all available sensors as candidate forwarding neighbors of the node S currently holding the packet. Destination position is virtual. After successfully sending message to forwarding node B over a real wireless channel, the position of virtual destination is adjusted by translating it for vector BS and possibly rotating it to change the neighborhood configuration. The same node S then again selects new forwarding neighbor. Such selection of best forwarding neighbor continues until virtual destination appears close to a real node, and the later then becomes final destination node. Compared to real testbeds, our emulation has advantages of testing networks with very large densities (which may not be possible in small scale implementations), and in unlimited scalability of our physical implementations (e.g. we can emulate network with a million nodes).

P.S.

@misc{radak-mobihoc2011,
	author = {Radak, Jovan and Pavkovic, Bogdan and Rousseau, Franck and Stojmenovic, Ivan},
	title = {Emulation of large scale wireless sensor networks: from real neighbors to imaginary destination},
	howpublished = {Poster paper, MobiHoc 2011},
	address = {Paris, France},
	month = May # {~16--19,},
	year = 2011
}

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