Multi Objective Resource Scheduling in LTE Networks Using Reinforcement Learning

Ioan Sorin Comsa, Mehmet Aydin, Sijing Zhang, Pierre Kuonen and Jean–Frédéric Wagen
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Ioan Sorin Comsa: University of Bedfordshire, UK and University of Applied Sciences of Western Switzerland, Switzerland
Mehmet Aydin: University of Bedfordshire, UK
Sijing Zhang: University of Bedfordshire, UK
Pierre Kuonen: University of Applied Sciences of Western Switzerland, Switzerland
Jean–Frédéric Wagen: University of Applied Sciences of Western Switzerland, Switzerland

International Journal of Distributed Systems and Technologies (IJDST), 2012, vol. 3, issue 2, 39-57

Abstract: The use of the intelligent packet scheduling process is absolutely necessary in order to make the radio resources usage more efficient in recent high-bit-rate demanding radio access technologies such as Long Term Evolution (LTE). Packet scheduling procedure works with various dispatching rules with different behaviors. In the literature, the scheduling disciplines are applied for the entire transmission sessions and the scheduler performance strongly depends on the exploited discipline. The method proposed in this paper aims to discuss how a straightforward schedule can be provided within the transmission time interval (TTI) sub-frame using a mixture of dispatching disciplines per TTI instead of a single rule adopted across the whole transmission. This is to maximize the system throughput while assuring the best user fairness. This requires adopting a policy of how to mix the rules and a refinement procedure to call the best rule each time. Two scheduling policies are proposed for how to mix the rules including use of Q learning algorithm for refining the policies. Simulation results indicate that the proposed methods outperform the existing scheduling techniques by maximizing the system throughput without harming the user fairness performance.

Date: 2012
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