Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement

Mobility for high-speed users has been a significant challenge for all mobile networks such as long-term evolution (LTE). Heterogeneous Network (HetNet) comprises numerous cells of varying sizes, various carrier frequency band and cell coverage. These differences make mobility difficult as its proce...

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Main Author:	Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir
Format:	Thesis
Language:	English
Published:	2022
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/102385/1/AhmedAbdelSalamMSKE2022.pdf.pdf
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spelling	my-utm-ep.1023852023-08-21T08:24:32Z Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement 2022 Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir TK Electrical engineering. Electronics Nuclear engineering Mobility for high-speed users has been a significant challenge for all mobile networks such as long-term evolution (LTE). Heterogeneous Network (HetNet) comprises numerous cells of varying sizes, various carrier frequency band and cell coverage. These differences make mobility difficult as its procedure time will increase due to a different level of required measurements. User equipment (UE) with a high speed of up to 140 km/h causes a high risk of disconnection to the handover (HO) procedure timing which is longer than UE with realistic speed. Several field measurements were conducted using the drive test (DT) tool to obtain real measurements of the LTE network deployed with different cell sizes and different operating frequency bands across highways. During the field measurements, there are frequent HOs and HO failures occurred, especially when UE with increasing speed up to 140 km/h in different HO environments in terms of peak hours or, site locations and LTE cell configuration. The handover preparation stage is affected by the UE speed increase. Moreover, the analyzed results show that HO preparation time increases as UE speed increases and HO execution time is slightly faster than the HO preparation time. The overall HO time was found to be less than 1 s for high-speed UE, indicating that the network environment influences the HO timing as compared to other studies conducted in a similar research area. In this thesis, UE speed is added as one of the main criteria to determine whether the network has to proceed HO with a routine UE HO or enforce UE to perform HO due to high speed which combined with regular HO parameters. Therefore, the matrix is defined with UE speed and reference signal received power (RSRP) as main conditions for the forcing handover knowing that RSRP is mainly used by mobile network operators (MNO). The algorithm calculates the HO waiting time once the speed and RSRP exceed the defined thresholds. The overall HO procedure is improved by 11% by using the forcing HO algorithm. 2022 Thesis http://eprints.utm.my/id/eprint/102385/ http://eprints.utm.my/id/eprint/102385/1/AhmedAbdelSalamMSKE2022.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149115 masters Universiti Teknologi Malaysia Faculty of Social Sciences & Humanities - School of Education
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
description	Mobility for high-speed users has been a significant challenge for all mobile networks such as long-term evolution (LTE). Heterogeneous Network (HetNet) comprises numerous cells of varying sizes, various carrier frequency band and cell coverage. These differences make mobility difficult as its procedure time will increase due to a different level of required measurements. User equipment (UE) with a high speed of up to 140 km/h causes a high risk of disconnection to the handover (HO) procedure timing which is longer than UE with realistic speed. Several field measurements were conducted using the drive test (DT) tool to obtain real measurements of the LTE network deployed with different cell sizes and different operating frequency bands across highways. During the field measurements, there are frequent HOs and HO failures occurred, especially when UE with increasing speed up to 140 km/h in different HO environments in terms of peak hours or, site locations and LTE cell configuration. The handover preparation stage is affected by the UE speed increase. Moreover, the analyzed results show that HO preparation time increases as UE speed increases and HO execution time is slightly faster than the HO preparation time. The overall HO time was found to be less than 1 s for high-speed UE, indicating that the network environment influences the HO timing as compared to other studies conducted in a similar research area. In this thesis, UE speed is added as one of the main criteria to determine whether the network has to proceed HO with a routine UE HO or enforce UE to perform HO due to high speed which combined with regular HO parameters. Therefore, the matrix is defined with UE speed and reference signal received power (RSRP) as main conditions for the forcing handover knowing that RSRP is mainly used by mobile network operators (MNO). The algorithm calculates the HO waiting time once the speed and RSRP exceed the defined thresholds. The overall HO procedure is improved by 11% by using the forcing HO algorithm.
format	Thesis
qualification_level	Master's degree
author	Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir
author_facet	Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir
author_sort	Abu ElGasim, Ahmed Abdelsalam Mohamed Kheir
title	Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
title_short	Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
title_full	Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
title_fullStr	Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
title_full_unstemmed	Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
title_sort	mobility management for heterogeneous long term evolution mobile networks based on drive test measurement
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Social Sciences & Humanities - School of Education
publishDate	2022
url	http://eprints.utm.my/id/eprint/102385/1/AhmedAbdelSalamMSKE2022.pdf.pdf
_version_	1776100910593736704

Mobility management for heterogeneous long term evolution mobile networks based on drive test measurement

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