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On the effect of cooperation in wireless content distribution
KTH, School of Electrical Engineering (EES), Communication Theory.
KTH, School of Electrical Engineering (EES), Communication Networks.ORCID iD: 0000-0002-3704-1338
2008 (English)In: 2008 FIFTH ANNUAL CONFERENCE ON WIRELESS ON DEMAND NETWORK SYSTEMS AND SERVICES, NEW YORK: IEEE , 2008, 141-148 p.Conference paper (Refereed)
Abstract [en]

In this paper we propose continuous time Markov chain models that capture the dynamics of content spreading in a disruption tolerant wireless content distribution system. We use our models to study the effect of cooperation among the mobile nodes and how limited node resources, such as battery lifetime and confined storage, affect the content distribution process. Based on our models and numerical results we deduce that limiting the number of times a node shares each content entry is a good method to conserve energy while at the same time only slightly reducing system performance. Our study also suggests that the effect of assisting nodes is greatest for content channels with few subscribers. For promoting fairness in distributing channels and giving new channels a chance to spread, assisting nodes should therefore solicit and help in spreading less popular channels.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2008. 141-148 p.
National Category
URN: urn:nbn:se:kth:diva-35861DOI: 10.1109/WONS.2008.4459369ISI: 000253937500022ScopusID: 2-s2.0-50049122760ISBN: 978-1-4244-1958-6OAI: diva2:429897
5th Annual Conference on Wireless On-Demand Network Systems and Services Garmisch Partenkirchen, GERMANY, JAN 23-25, 2008
QC 20110706Available from: 2011-07-06 Created: 2011-07-05 Last updated: 2013-09-09Bibliographically approved

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