E, N. and Chu, X. (Accepted: 2016) Stochastic Geometry Analysis and Additional Small Cell Deployment for HetNets Affected by Hot Spots. Mobile Information Systems, 2016. 9727891. ISSN 1574-017X
Abstract
Hot spots (HSs) of mobile users that were not expected in the original network planning may occur after a heterogeneous network (HetNet) has been deployed and affect the network performance. In this case, deploying additional small cells on top of the existing HetNet without changing the existing network infrastructure is considered as a solution. In this paper, we first provide a stochastic geometry analysis for a HetNet affected by a large HS and for the additional small cells that need to be deployed based on the spatial bivariate Poisson point process. The optimal numbers of additional small cells required in the HS and non-HS areas are obtained by minimizing the difference between the numbers of macrocell users after and before the HS occurs based on the analytical results. We then propose an algorithm to maximize the average user throughput by jointly optimizing the locations of additional small cells and user associations of all cells. Simulation results show that the proposed algorithm can maintain the average user throughput above a threshold with excellent fairness among all users even for a very high density of HS users.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 N. E and X. Chu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Small cell; deployment; hot spot; HetNet; spatial bivariate Poisson point process |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number EUROPEAN COMMISSION - HORIZON 2020 645705 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Jan 2016 15:09 |
Last Modified: | 12 Apr 2017 00:57 |
Published Version: | http://dx.doi.org/10.1155/2016/9727891 |
Status: | Published |
Publisher: | IOS Press |
Refereed: | Yes |
Identification Number: | 10.1155/2016/9727891 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:93830 |