Mathematics > Optimization and Control
[Submitted on 16 Jan 2022 (v1), last revised 21 Feb 2022 (this version, v2)]
Title:Sequence Q-Learning Algorithm for Optimal Mobility-Aware User Association
View PDFAbstract:We consider a wireless network scenario applicable to metropolitan areas with developed public transport networks and high commute demands, where the mobile user equipments (UEs) move along fixed and predetermined trajectories and request to associate with millimeter-wave (mmWave) base stations (BSs). An effective and efficient algorithm, called the Sequence Q-learning Algorithm (SQA), is proposed to maximize the long-run average transmission rate of the network, which is an NP-hard problem. Furthermore, the SQA tackles the complexity issue by only allowing possible re-associations (handover of a UE from one BS to another) at a discrete set of decision epochs and has polynomial time complexity. This feature of the SQA also restricts too frequent handovers, which are considered highly undesirable in mmWave networks. Moreover, we demonstrate by extensive numerical results that the SQA can significantly outperform the benchmark algorithms proposed in existing research by taking all UEs' future trajectories and possible decisions into account at every decision epoch.
Submission history
From: Wanjun Ning [view email][v1] Sun, 16 Jan 2022 06:30:14 UTC (746 KB)
[v2] Mon, 21 Feb 2022 09:23:17 UTC (806 KB)
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