Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes

Full-duplex HCNs have emerged as a compelling solution to meet the escalating traffic demands of future fifth-generation networks. Theoretical advantages of full-duplex cellular networks include the potential for doubling throughput compared to half-duplex cellular systems, as base stations can both...

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Main Authors: Muhammad Mujtaba Shaikh, Safia Amir Dahri, Khursheed Aurangzeb, Muhammad Afzal Soomro, Musaed Alhussein, Bharat Bhushan
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10398179/
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author Muhammad Mujtaba Shaikh
Safia Amir Dahri
Khursheed Aurangzeb
Muhammad Afzal Soomro
Musaed Alhussein
Bharat Bhushan
author_facet Muhammad Mujtaba Shaikh
Safia Amir Dahri
Khursheed Aurangzeb
Muhammad Afzal Soomro
Musaed Alhussein
Bharat Bhushan
author_sort Muhammad Mujtaba Shaikh
collection DOAJ
description Full-duplex HCNs have emerged as a compelling solution to meet the escalating traffic demands of future fifth-generation networks. Theoretical advantages of full-duplex cellular networks include the potential for doubling throughput compared to half-duplex cellular systems, as base stations can both receive and transmit within the same frequency band, thereby enhancing various performance metrics. However, in practice, achieving this twofold increase in throughput and maintaining other performance metrics can be challenging due to interference from full-duplex base stations, particularly those of large-scale macro BSs. In this study, we explore a two-tier hybrid duplex HCN architecture, where small-scale BSs operate in full-duplex mode while large-scale BSs and user equipment utilize traditional half-duplex communication. This hybrid approach aims to mitigate interference issues and manage costs effectively. We investigate the impact of various network parameters, coupling scenarios, duplexing modes, and association criteria on the performance of the two-tier HCN. Our simulation results reveal the significant influence of user and small-scale BS densities, as well as the maximum user limit, on binary rate and the Jains fairness index. Remarkably, both binary rate and Jains fairness index exhibit optimal performance at specific values of cell range expansion. In the context of downlink and uplink binary rates, FD and hybrid duplex modes outperform other modes, particularly when the association criterion is based on maximizing average received power. However, when considering the Jains fairness index under the nearest association criteria, half-duplex mode consistently outperforms other modes. This research sheds light on the intricate interplay of duplexing modes, association criteria, and network parameters in the context of FD HCNs, providing valuable insights for optimizing network performance in the era of 5G and beyond.
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spelling doaj.art-ce16e1d4f627480f9c81a7a1b8ee9a9c2024-01-30T00:02:26ZengIEEEIEEE Access2169-35362024-01-0112131121312410.1109/ACCESS.2024.335368010398179Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex ModesMuhammad Mujtaba Shaikh0Safia Amir Dahri1https://orcid.org/0000-0002-4075-6043Khursheed Aurangzeb2https://orcid.org/0000-0003-3647-8578Muhammad Afzal Soomro3https://orcid.org/0000-0002-2398-1716Musaed Alhussein4https://orcid.org/0000-0002-5538-6778Bharat Bhushan5Department of Telecommunication Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, PakistanDepartment of Telecommunication Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, PakistanDepartment of Computer Engineering, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi ArabiaDepartment of Mathematics and Statistics, Quaid-e-Awam University of Engineering, Science & Technology, Nawabshah, PakistanDepartment of Computer Engineering, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi ArabiaDepartment of Computer Science and Engineering, School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh, IndiaFull-duplex HCNs have emerged as a compelling solution to meet the escalating traffic demands of future fifth-generation networks. Theoretical advantages of full-duplex cellular networks include the potential for doubling throughput compared to half-duplex cellular systems, as base stations can both receive and transmit within the same frequency band, thereby enhancing various performance metrics. However, in practice, achieving this twofold increase in throughput and maintaining other performance metrics can be challenging due to interference from full-duplex base stations, particularly those of large-scale macro BSs. In this study, we explore a two-tier hybrid duplex HCN architecture, where small-scale BSs operate in full-duplex mode while large-scale BSs and user equipment utilize traditional half-duplex communication. This hybrid approach aims to mitigate interference issues and manage costs effectively. We investigate the impact of various network parameters, coupling scenarios, duplexing modes, and association criteria on the performance of the two-tier HCN. Our simulation results reveal the significant influence of user and small-scale BS densities, as well as the maximum user limit, on binary rate and the Jains fairness index. Remarkably, both binary rate and Jains fairness index exhibit optimal performance at specific values of cell range expansion. In the context of downlink and uplink binary rates, FD and hybrid duplex modes outperform other modes, particularly when the association criterion is based on maximizing average received power. However, when considering the Jains fairness index under the nearest association criteria, half-duplex mode consistently outperforms other modes. This research sheds light on the intricate interplay of duplexing modes, association criteria, and network parameters in the context of FD HCNs, providing valuable insights for optimizing network performance in the era of 5G and beyond.https://ieeexplore.ieee.org/document/10398179/5GJains fairness indexfull-duplexhybrid-duplexHCNsbinary rate
spellingShingle Muhammad Mujtaba Shaikh
Safia Amir Dahri
Khursheed Aurangzeb
Muhammad Afzal Soomro
Musaed Alhussein
Bharat Bhushan
Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
IEEE Access
5G
Jains fairness index
full-duplex
hybrid-duplex
HCNs
binary rate
title Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
title_full Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
title_fullStr Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
title_full_unstemmed Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
title_short Optimizing Cellular Network Binary Rate and Fairness: Examination of a Two-Tier Hybrid Duplex Architecture Employing Full-Duplex and Half-Duplex Modes
title_sort optimizing cellular network binary rate and fairness examination of a two tier hybrid duplex architecture employing full duplex and half duplex modes
topic 5G
Jains fairness index
full-duplex
hybrid-duplex
HCNs
binary rate
url https://ieeexplore.ieee.org/document/10398179/
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