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Multi-flow rate control in delayed Wi-Fi offloading systems
KTH, School of Electrical Engineering (EES), Automatic Control.
2016 (English)In: 2016 International Conference on Information Networking (ICOIN), IEEE Computer Society, 2016, Vol. 2016, 274-279 p.Conference paper (Refereed)Text
Abstract [en]

Explosive growth of mobile data traffic becomes an increasingly serious problem in cellular networks. Delayed Wi-Fi offloading is the concept to shift the delay-tolerant mobile traffic from cellular networks to Wi-Fi networks at the cost of additional delay. Existing studies mainly focused on a single-flow management or a multi-flow case without specified deadlines. In this paper, we address a multi-flow offloading problem in which a mobile user has multiple traffic flows whose loads and deadlines are different. More precisely, we formulate a multi-flow rate control based on a discrete and finite-horizon Markov decision problem. We develop a dynamic programming (DP)-based optimal rate control algorithm to maximize user satisfaction defined as offloading efficiency minus disutility due to deadline violations. Moreover, we propose a threshold-based rate control algorithm which requires low-complexity and low-memory but achieves high performance. Trace driven simulations based on measurements show that our proposed algorithms achieve high user satisfaction compared to existing algorithms.

Place, publisher, year, edition, pages
IEEE Computer Society, 2016. Vol. 2016, 274-279 p.
Series
, International Conference on Information Networking, ISSN 1976-7684
Keyword [en]
Algorithms, Complex networks, Dynamic programming, Mobile telecommunication systems, Pollution control, Wireless networks, Cellular network, Markov decision problem, Mobile data traffic, Multiple traffics, Rate control algorithms, Trace driven simulation, User satisfaction, Wi-Fi offloading
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-187269DOI: 10.1109/ICOIN.2016.7427076ISI: 000377961000051ScopusID: 2-s2.0-84963960485ISBN: 978-150901724-9OAI: oai:DiVA.org:kth-187269DiVA: diva2:929829
Conference
30th International Conference on Information Networking, ICOIN 2016, Nexus Resort and Spa Karambunaioff Jalan Sepanggar Bay, Locked Bag 100, SabahKota Kinabalu, Malaysia, 13 January 2016 through 15 January 2016
Note

QC 20160520

Available from: 2016-05-20 Created: 2016-05-19 Last updated: 2016-07-18Bibliographically approved

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