Abstract
We study globally optimal user-network association in an integrated WLAN and UMTS hybrid cell. The association problem is formulated as a generic MDP (Markov Decision Process) connection routing decision problem. In the formulation, mobile arrivals are assumed to follow Poisson process and a uniformization technique is applied in order to transform the otherwise state-dependent mobile departures into an i.i.d. process. We solve the MDP problem using a particular network model for WLAN and UMTS networks and with rewards comprising financial gain and throughput components. The corresponding Dynamic Programming equation is solved using Value Iteration and a stationary optimal policy with neither convex nor concave type switching curve structure is obtained. Threshold type and symmetric switching curves are observed for the analogous homogenous network cases.
This work was sponsored through a research contract between INRIA and France Telecom R&D.
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Kumar, D., Altman, E., Kelif, JM. (2007). Globally Optimal User-Network Association in an 802.11 WLAN & 3G UMTS Hybrid Cell. In: Mason, L., Drwiega, T., Yan, J. (eds) Managing Traffic Performance in Converged Networks. ITC 2007. Lecture Notes in Computer Science, vol 4516. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72990-7_100
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DOI: https://doi.org/10.1007/978-3-540-72990-7_100
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72989-1
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