NDLI: MDP-Based Network Selection with Reward Optimization in HetNets

Content Provider	IET Digital Library
Author	Chen, Xin Li, Zhuo Wang, Kai Xing, Lei
Abstract	We investigate the network selection problem over heterogeneous networks. We formulate the decision making problem as a Markov decision process (MDP). Two Poisson processes are introduced to model user arrival and departure, and the change of the number of user in a specific network is described by Skellam Distribution. We apply the Total order preference by similarity to the ideal solution (TOPSIS) method to address the issue of state space explosion in MDP model. To acquire the optimal network selection scheme, the value iteration algorithm is employed to solve the MDP model. We take simulations in Matlab to prove the effectiveness of the proposed scheme. From the experiment results, it is found that our proposed scheme can reduce handover probability by 7.5% and 40.4% at the early stage of connection, compared with the Infinite MDP-based (IMDP) strategy and TOPSISonly strategy. It can also reduce blocking probability by 6.1% compared with IMDP, while maintaining desirable throughput for the target user.
Starting Page	183
Ending Page	190
Page Count	8
ISSN	10224653
Volume Number	27
e-ISSN	20755597
Issue Number	Issue 1, Jan (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/cje/27/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/cje.2017.11.017
Journal	Chinese Journal of Electronics
Publisher Date	2018-01-01
Access Restriction	Open
Rights Holder	© Chinese Institute of Electronics
Subject Keyword	Blocking Probability Cellular Radio Computer Communication Computer Network Computer Network And Technique Decision Making Problem Handover Probability Heterogeneous Network HetNets Markov Decision Process Markov Processes MATLAB MDP Model MDP-based Network Selection Mobile Cellular Network Mobile Radio Mobile Radio System Mobility Management Network Management Network Selection Problem Optimal Network Selection Scheme Reward Optimization Skellam Distribution State Space Explosion Statistical Distribution TOPSIS Method Total Order Preference-by-similarity-to-the-ideal Solution Method
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering

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