Graduate School and Research Center in Digital Sciences

Optimization of delayed mobile data offloading

Mehmeti, Fidan; Spyropoulos, Thrasyvoulos

Research Report RR-13-286

Operators have recently resorted to WiFi offloading to deal with increasing data demand and induced congestion. Researchers have further suggested the use of "delayed offloading": if no WiFi connection is available, (some) traffic can be delayed up to a given deadline, or until WiFi becomes available. Nevertheless, there is no clear consensus as to the benefits of delayed offloading, with a couple of recent experimental studies largely diverging in their conclusions. Nor is it clear how these benefits depend on network characteristics (e.g. WiFi availability), user traffic load, etc. In this paper, we propose a queueing analytic model for delayed offloading, and derive the mean delay, offloading efficiency, and other metrics of interest, as a function of the user's "patience", and key network parameters. We validate the accuracy of our results using a range of realistic scenarios, and use these expressions to show how to optimally choose deadlines.

Document Bibtex

Title:Optimization of delayed mobile data offloading
Keywords:Mobile data offloading, Deadlines, Queueing, 2D Markov chain, Optimization
Department:Communication systems
Eurecom ref:4097
Copyright: © EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in Research Report RR-13-286 and is available at :
Bibtex: @techreport{EURECOM+4097, year = {2013}, title = {{O}ptimization of delayed mobile data offloading}, author = {{M}ehmeti, {F}idan and {S}pyropoulos, {T}hrasyvoulos}, number = {EURECOM+4097}, month = {07}, institution = {Eurecom}, url = {},, }
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