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Open AccessFeature PaperArticle

QoS Priority-Based Mobile Personal Cell Deployment with Load Balancing for Interference Reduction between Users on Coexisting Public Safety and Railway LTE Networks

1
Department of Electrical and Computer Engineering, Inha University, Incheon 22212, Korea
2
Department of Electrical Engineering, FET, Gomal University, Dera Ismail Khan 29050, Pakistan
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(12), 2136; https://doi.org/10.3390/electronics9122136
Received: 22 October 2020 / Revised: 30 November 2020 / Accepted: 9 December 2020 / Published: 13 December 2020
(This article belongs to the Special Issue Mobile Ad Hoc Networks: Recent Advances and Future Trends)
The Republic of Korea has played a leading role in the development of next-generation long-term evolution (LTE) public safety networks. The LTE-based public safety (PS-LTE) network, the LTE-based high-speed railway (LTE-R) network, and the LTE-based maritime (LTE-M) network use the same 700 MHz frequency band. That results in severe co-channel interference (CCI), so there is a dire need for practical research into resolving the CCI issue. Moreover, unplanned deployment of the mobile personal cell (mPC) generates serious user-association issues owing to its movement, which leads to severe co-channel interference in coexisting PS-LTE and LTE-R networks. Indeed, it is important to satisfy users’ quality of service (QoS) requirements during resource allocation in specific public safety situations. Therefore, we address the CCI issues through wise deployment of the mPC for user association and load balancing in overlapping PS-LTE and LTE-R networks. In this paper, we propose a QoS mPC deployment (QoS_mPCD) scheme for priority-based load balancing and interference reduction in coexisting PS-LTE and LTE-R networks. The proposed scheme efficiently manages the user-association and load-balancing problems, and allocates the best resources to high-priority users based on defined service priority levels. Moreover, we employ an enhanced inter-cell interference coordination (eICIC) scheme that further reduces the interference with the users offloaded onto an mPC. System-level simulations are performed to evaluate the proposed QoS_mPCD scheme by considering important performance matrices such as user equipment (UE) throughput, UE received interference, and UE outage probabilities. View Full-Text
Keywords: public safety network; railway network; coexistence; mobile personal cell; priority gate model public safety network; railway network; coexistence; mobile personal cell; priority gate model
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MDPI and ACS Style

Ahmad, I.; Jang, J.; Chang, K. QoS Priority-Based Mobile Personal Cell Deployment with Load Balancing for Interference Reduction between Users on Coexisting Public Safety and Railway LTE Networks. Electronics 2020, 9, 2136. https://doi.org/10.3390/electronics9122136

AMA Style

Ahmad I, Jang J, Chang K. QoS Priority-Based Mobile Personal Cell Deployment with Load Balancing for Interference Reduction between Users on Coexisting Public Safety and Railway LTE Networks. Electronics. 2020; 9(12):2136. https://doi.org/10.3390/electronics9122136

Chicago/Turabian Style

Ahmad, Ishtiaq; Jang, JinYoung; Chang, KyungHi. 2020. "QoS Priority-Based Mobile Personal Cell Deployment with Load Balancing for Interference Reduction between Users on Coexisting Public Safety and Railway LTE Networks" Electronics 9, no. 12: 2136. https://doi.org/10.3390/electronics9122136

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