Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks
With huge number of smart gadgets and wireless devices being interconnected to each other, the demand for very high data bandwidth is becoming critically challenging. With such density of nodes inside wireless networks, providing high-quality service as well as wide coverage in indoor environment is...
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Series: | Wireless Communications and Mobile Computing |
Online Access: | http://dx.doi.org/10.1155/2021/2735935 |
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doaj-8d126fbe6b004f9abc276dd915b63e832021-09-20T00:29:48ZengHindawi-WileyWireless Communications and Mobile Computing1530-86772021-01-01202110.1155/2021/2735935Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous NetworksMotea Saleh Al-omari0Mohammad Ahmed Alomari1Abdul Rahman Ramli2Aduwati Sali3Raja Syamsul Azmir4M. Hafiz Yusoff5Faculty of EngineeringInstitute of Informatics and Computing in EnergyFaculty of EngineeringFaculty of EngineeringFaculty of EngineeringSchool of Informatics and ComputingWith huge number of smart gadgets and wireless devices being interconnected to each other, the demand for very high data bandwidth is becoming critically challenging. With such density of nodes inside wireless networks, providing high-quality service as well as wide coverage in indoor environment is a real challenge, which is due to the limited radio frequency and intense interference between nodes. As a one way to solve such problem and improve indoor service quality, femtocells have been introduced as an extension to the existing macrocell stations. Although femtocell is a promising technology, the pervasive deployment of huge number of femtocells without very tight network planning as well as coverage strategy may worsen the problem and degrade the service quality. One important problem that needs to be addressed when deploying femtocell technology in heterogenous networks (HetNets) is mitigating the various types of cross-tier and cotier interferences in between wireless cells. This study investigates the effect of unplanned ultradensity femtocell deployment in the downlink performance of two-tier heterogeneous networks in urban area based on LTE system. Instead of deploying femtocells one by one, grids of size either (3×3) or (5×5) of neighboring femtocell will be deployed inside each macrocell sector area. The simulation results show that femtocell deployment improves overall average user throughput in case of low and medium density scenarios. However, for ultradensity scenario, there is no enhancement in terms of fairness and throughput. The results confirm that this leads to high degradation for macrocell and femtocell user performance due to the severe interference between macrocells and femtocells, as well as among neighboring femtocells in each grid.http://dx.doi.org/10.1155/2021/2735935 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Motea Saleh Al-omari Mohammad Ahmed Alomari Abdul Rahman Ramli Aduwati Sali Raja Syamsul Azmir M. Hafiz Yusoff |
spellingShingle |
Motea Saleh Al-omari Mohammad Ahmed Alomari Abdul Rahman Ramli Aduwati Sali Raja Syamsul Azmir M. Hafiz Yusoff Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks Wireless Communications and Mobile Computing |
author_facet |
Motea Saleh Al-omari Mohammad Ahmed Alomari Abdul Rahman Ramli Aduwati Sali Raja Syamsul Azmir M. Hafiz Yusoff |
author_sort |
Motea Saleh Al-omari |
title |
Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks |
title_short |
Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks |
title_full |
Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks |
title_fullStr |
Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks |
title_full_unstemmed |
Effects of Femtocell Ultradense Deployment on Downlink Performance in LTE Heterogeneous Networks |
title_sort |
effects of femtocell ultradense deployment on downlink performance in lte heterogeneous networks |
publisher |
Hindawi-Wiley |
series |
Wireless Communications and Mobile Computing |
issn |
1530-8677 |
publishDate |
2021-01-01 |
description |
With huge number of smart gadgets and wireless devices being interconnected to each other, the demand for very high data bandwidth is becoming critically challenging. With such density of nodes inside wireless networks, providing high-quality service as well as wide coverage in indoor environment is a real challenge, which is due to the limited radio frequency and intense interference between nodes. As a one way to solve such problem and improve indoor service quality, femtocells have been introduced as an extension to the existing macrocell stations. Although femtocell is a promising technology, the pervasive deployment of huge number of femtocells without very tight network planning as well as coverage strategy may worsen the problem and degrade the service quality. One important problem that needs to be addressed when deploying femtocell technology in heterogenous networks (HetNets) is mitigating the various types of cross-tier and cotier interferences in between wireless cells. This study investigates the effect of unplanned ultradensity femtocell deployment in the downlink performance of two-tier heterogeneous networks in urban area based on LTE system. Instead of deploying femtocells one by one, grids of size either (3×3) or (5×5) of neighboring femtocell will be deployed inside each macrocell sector area. The simulation results show that femtocell deployment improves overall average user throughput in case of low and medium density scenarios. However, for ultradensity scenario, there is no enhancement in terms of fairness and throughput. The results confirm that this leads to high degradation for macrocell and femtocell user performance due to the severe interference between macrocells and femtocells, as well as among neighboring femtocells in each grid. |
url |
http://dx.doi.org/10.1155/2021/2735935 |
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