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Opportunistic web access via WLAN hotspots

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3 Author(s)
Pitkanen, M. ; Technol. Programme, Helsinki Inst. of Phys., Helsinki, Finland ; Karkkainen, T. ; Ott, J.

Mobile phones are becoming commonplace for consuming Internet content and services. However, availability, affordability, and quality of the supposedly ubiquitous cellular network infrastructure may be limited, so that delay-tolerant web access via WLAN hotspots becomes an interesting alternative, even in urban areas. In this paper we explore mobile web access using asynchronous messaging via WLAN hotspots: for nodes directly connected to an access point and nodes relying on others for message forwarding. We investigate different routing and caching approaches using real-world access point locations in Helsinki. We find that a significant number of requests can be satisfied without requiring an always-on infrastructure, provided that users are willing to tolerate some response delay; this allows offloading traffic from the cellular network. We also report on our prototype implementation of mobile DTN-based web browsing.

Published in:

Pervasive Computing and Communications (PerCom), 2010 IEEE International Conference on

Date of Conference:

March 29 2010-April 2 2010