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Sensors 2015, 15(9), 24230-24256; doi:10.3390/s150924230

Cell Selection Game for Densely-Deployed Sensor and Mobile Devices In 5G Networks Integrating Heterogeneous Cells and the Internet of Things

School of Computer and Information, Hefei University of Technology, Anhui 230009, China
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Author to whom correspondence should be addressed.
Academic Editor: Stefan Poslad
Received: 29 July 2015 / Revised: 6 September 2015 / Accepted: 12 September 2015 / Published: 18 September 2015
(This article belongs to the Section Sensor Networks)
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Abstract

With the rapid development of wireless networking technologies, the Internet of Things and heterogeneous cellular networks (HCNs) tend to be integrated to form a promising wireless network paradigm for 5G. Hyper-dense sensor and mobile devices will be deployed under the coverage of heterogeneous cells, so that each of them could freely select any available cell covering it and compete for resource with others selecting the same cell, forming a cell selection (CS) game between these devices. Since different types of cells usually share the same portion of the spectrum, devices selecting overlapped cells can experience severe inter-cell interference (ICI). In this article, we study the CS game among a large amount of densely-deployed sensor and mobile devices for their uplink transmissions in a two-tier HCN. ICI is embedded with the traditional congestion game (TCG), forming a congestion game with ICI (CGI) and a congestion game with capacity (CGC). For the three games above, we theoretically find the circular boundaries between the devices selecting the macrocell and those selecting the picocells, indicated by the pure strategy Nash equilibria (PSNE). Meanwhile, through a number of simulations with different picocell radii and different path loss exponents, the collapse of the PSNE impacted by severe ICI (i.e., a large number of picocell devices change their CS preferences to the macrocell) is profoundly revealed, and the collapse points are identified. View Full-Text
Keywords: Internet of Things; dense sensor networks; heterogeneous cells; cell selection game; inter-cell interference Internet of Things; dense sensor networks; heterogeneous cells; cell selection game; inter-cell interference
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. (CC BY 4.0).

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MDPI and ACS Style

Wang, L.; Wang, Y.; Ding, Z.; Wang, X. Cell Selection Game for Densely-Deployed Sensor and Mobile Devices In 5G Networks Integrating Heterogeneous Cells and the Internet of Things. Sensors 2015, 15, 24230-24256.

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