How much can we carry?: a capacity analysis of delay tolerant networking in developing countries

Authors:
Abdullah Alhussainy;Karin Anna Hummel;Panayotis Antoniadis
Affiliations:
ETH Zurich, Zurich, Switzerland;ETH Zurich, Zurich, Switzerland;ETH Zurich, Zurich, Switzerland
Venue:
Proceedings of the 2013 ACM MobiCom workshop on Lowest cost denominator networking for universal access
Year:
2013

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Abstract

In developing countries, where infrastructure data networks often provide only limited services, are too expensive, or are not available in wide parts, Delay Tolerant Networks (DTNs) provide a valuable complement for communications. Store-carry-forward or opportunistic networks have the potential to connect so far disconnected regions with regions where Internet access is granted. Yet, they depend on the existence of a critical mass of users acting as data carriers. The goal of this paper is to provide a way to estimate the capacity of such a network given available information on user mobility patterns at a countrywide scale. To do this, we analyze anonymized cellular mobility data of five months based on Call Detail Records (CDRs) provided by Orange for Ivory Coast. We derive inter-city and urban inbound and outbound flows of subscribers (carriers) and the corresponding estimated capacity of a hypothetical opportunistic network.