Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network

The heterogeneous deployment of different base stations has increased the overall network capacity and reduced excess traffic from the macrocell network. However, this improved system performance is accompanied by several technical challenges which include interference management, power control, res...

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Autores principales:	O. I. Ladipo, A. O. Gbenga-Ilori
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	two-tier network interference power control stackelberg equilibrium Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/77ea85e488fc42c8bab40094ee7d8d9e
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spelling	oai:doaj.org-article:77ea85e488fc42c8bab40094ee7d8d9e2021-11-04T15:51:56ZHierarchical power control model for interference mitigation in a two – Tier heterogeneous network2331-191610.1080/23311916.2019.1691358https://doaj.org/article/77ea85e488fc42c8bab40094ee7d8d9e2019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1691358https://doaj.org/toc/2331-1916The heterogeneous deployment of different base stations has increased the overall network capacity and reduced excess traffic from the macrocell network. However, this improved system performance is accompanied by several technical challenges which include interference management, power control, resource allocation, security, backhaul, and handover issues. This paper presents a single-leader, multi-follower power control game model that mitigates interference in a two-tier heterogeneous network where femtocells are densely deployed within the coverage area of the macrocell. In the proposed game, the femtocells act as the followers and update their respective transmission power based on the information received from the macrocell which is the leader of the Stackelberg game. The existence of the Stackelberg equilibrium (SE) in the formulated game was determined by the backward induction method and it showed the possibility of a stability point that is optimal and Pareto efficient. Extensive simulations were carried out to evaluate the performance of the proposed scheme and the effect of the set transmission cost and utility function on the base stations. Simulation results showed a reduced level of interference between the base stations, improved network capacity, and effective allocation of network resources among the users.O. I. LadipoA. O. Gbenga-IloriTaylor & Francis Grouparticletwo-tier networkinterferencepower controlstackelberg equilibriumEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	two-tier network interference power control stackelberg equilibrium Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	two-tier network interference power control stackelberg equilibrium Engineering (General). Civil engineering (General) TA1-2040 O. I. Ladipo A. O. Gbenga-Ilori Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
description	The heterogeneous deployment of different base stations has increased the overall network capacity and reduced excess traffic from the macrocell network. However, this improved system performance is accompanied by several technical challenges which include interference management, power control, resource allocation, security, backhaul, and handover issues. This paper presents a single-leader, multi-follower power control game model that mitigates interference in a two-tier heterogeneous network where femtocells are densely deployed within the coverage area of the macrocell. In the proposed game, the femtocells act as the followers and update their respective transmission power based on the information received from the macrocell which is the leader of the Stackelberg game. The existence of the Stackelberg equilibrium (SE) in the formulated game was determined by the backward induction method and it showed the possibility of a stability point that is optimal and Pareto efficient. Extensive simulations were carried out to evaluate the performance of the proposed scheme and the effect of the set transmission cost and utility function on the base stations. Simulation results showed a reduced level of interference between the base stations, improved network capacity, and effective allocation of network resources among the users.
format	article
author	O. I. Ladipo A. O. Gbenga-Ilori
author_facet	O. I. Ladipo A. O. Gbenga-Ilori
author_sort	O. I. Ladipo
title	Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
title_short	Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
title_full	Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
title_fullStr	Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
title_full_unstemmed	Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network
title_sort	hierarchical power control model for interference mitigation in a two – tier heterogeneous network
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/77ea85e488fc42c8bab40094ee7d8d9e
work_keys_str_mv	AT oiladipo hierarchicalpowercontrolmodelforinterferencemitigationinatwotierheterogeneousnetwork AT aogbengailori hierarchicalpowercontrolmodelforinterferencemitigationinatwotierheterogeneousnetwork
_version_	1718444658632163328

Hierarchical power control model for interference mitigation in a two – Tier heterogeneous network

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