Impact of Duty Cycling on Opportunistic Communication
2016 (English)In: IEEE Transactions on Mobile Computing, ISSN 1536-1233, E-ISSN 1558-0660, Vol. 15, no 7, 1686-1698 p.Article in journal (Refereed) Epub ahead of print
A major challenge in mobile wireless devices for opportunistic networks is to decrease the energy consumption. The decrease should not come at a cost of reduced application throughput (i.e. goodput). This work evaluates the potential performance gains for mobile nodes that adopt duty cycling in an opportunistic context. The paper presents an analytical framework for evaluating goodput and energy consumption of nodes based on a probabilistic estimation of effective contact durations, and it validates this framework on a mobility scenario. The study shows that both goodput and energy consumption depend strongly on the distribution of listening durations, and that goodput is independent of the contact rate among nodes. This work also includes extensive trace-driven simulations and demonstrates that duty cycling considerably improves the performance of opportunistic networks by decreasing the energy consumption without significantly affecting the goodput.
Place, publisher, year, edition, pages
2016. Vol. 15, no 7, 1686-1698 p.
energy savings, energy-goodput trade-off, opportunistic communication, duty-cycling, wireless systems
IdentifiersURN: urn:nbn:se:kth:diva-175758DOI: 10.1109/TMC.2015.2478470ISI: 000378499000008ScopusID: 2-s2.0-84976599198OAI: oai:DiVA.org:kth-175758DiVA: diva2:862190
QCR 201606082015-10-202015-10-202016-07-26Bibliographically approved