In these last years the demand for personal and ubiquitous communication has raised at a tremendous rate. Mobile services, which are nowadays typically offered based on location and context, suffer from various 3G shortcomings, and many data providers are looking for innovative solutions offering a carrier-independent, location-based, and cheaper than 3G data distribution. The deployment of a Delay Tolerant Network (DTN) in a urban scenario seems to be a viable solution to support city-wide information services exploiting public transportation systems as virtual backbones. The majority of DTN routing protocols make use of a multi-copy forwarding approach and are usually designed for campus-wide or rural area communication. The contribution of this paper is an assessment on the scalability limits of popular DTN routing protocols when applied to a real city using its actual public transportation system. We show that multi-copy algorithms do not scale well to a huge area and demonstrate that performance of a probability-based single-copy algorithm degrades more gracefully even with very high levels of traffic.
On the scalability of delay toelerant routing protocols in urban environment / C. Quadri, D. Maggiorini, S. Gaito, G. P. Rossi - In: IFIP Wireless Days Conference 2011[s.l] : IEEE, 2011 Oct. - ISBN 9781457720277. (( convegno IEEE/IFIP Wireless Days Conference 2011 tenutosi a Niagara Falls, Canada nel 2011 [10.1109/WD.2011.6098168].
On the scalability of delay toelerant routing protocols in urban environment
C. QuadriPrimo
;D. MaggioriniSecondo
;S. GaitoPenultimo
;G.P. RossiUltimo
2011
Abstract
In these last years the demand for personal and ubiquitous communication has raised at a tremendous rate. Mobile services, which are nowadays typically offered based on location and context, suffer from various 3G shortcomings, and many data providers are looking for innovative solutions offering a carrier-independent, location-based, and cheaper than 3G data distribution. The deployment of a Delay Tolerant Network (DTN) in a urban scenario seems to be a viable solution to support city-wide information services exploiting public transportation systems as virtual backbones. The majority of DTN routing protocols make use of a multi-copy forwarding approach and are usually designed for campus-wide or rural area communication. The contribution of this paper is an assessment on the scalability limits of popular DTN routing protocols when applied to a real city using its actual public transportation system. We show that multi-copy algorithms do not scale well to a huge area and demonstrate that performance of a probability-based single-copy algorithm degrades more gracefully even with very high levels of traffic.Pubblicazioni consigliate
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