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Clearwater Beach, FL, USA USA
Oct. 22, 2012 to Oct. 25, 2012
ISBN: 978-1-4673-1565-4
pp: 332-335
Ioan Sorin Comsa , Institute for Research in Applicable Computing, University of Bedfordshire, Luton, United Kingdom
Sijing Zhang , Institute for Research in Applicable Computing, University of Bedfordshire, Luton, United Kingdom
Mehmet Aydin , Institute for Research in Applicable Computing, University of Bedfordshire, Luton, United Kingdom
ABSTRACT
The tradeoff concept between system capacity and user fairness attracts a big interest in LTE-Advanced resource allocation strategies. By using static threshold values for throughput or fairness, regardless the network conditions, makes the scheduler to be inflexible when different tradeoff levels are required by the system. This paper proposes a novel dynamic neural Q-learning-based scheduling technique that achieves a flexible throughput-fairness tradeoff by offering optimal solutions according to the Channel Quality Indicator (CQI) for different classes of users. The Q-learning algorithm is used to adopt different policies of scheduling rules, at each Transmission Time Interval (TTI). The novel scheduling technique makes use of neural networks in order to estimate proper scheduling rules for different states which have not been explored yet. Simulation results indicate that the novel proposed method outperforms the existing scheduling techniques by maximizing the system throughput when different levels of fairness are required. Moreover, the system achieves a desired throughput-fairness tradeoff and an overall satisfaction for different classes of users.
INDEX TERMS
Throughput, Dynamic scheduling, Neural networks, Scheduling algorithms, Heuristic algorithms, Optimal scheduling, neural network, LTE-Advanced, TTI, CQI, throughput, fairness, scheduling rule, policy, Q-learning
CITATION
Ioan Sorin Comsa, Sijing Zhang, Mehmet Aydin, "A novel dynamic Q-learning-based scheduler technique for LTE-advanced technologies using neural networks", LCN, 2012, 38th Annual IEEE Conference on Local Computer Networks, 38th Annual IEEE Conference on Local Computer Networks 2012, pp. 332-335, doi:10.1109/LCN.2012.6423642
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