Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells

We consider heterogeneous wireless networks in the physical interference model and introduce a new formulation of the mixed-integer nonlinear programming (MINLP) problem that addresses base-station activation and many-to-many associations while minimizing power consumption. This formulation is compl...

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Autores principales:	Raphael M. Guedes, Jose F. De Rezende, Valmir C. Barbosa
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Capacity allocation heterogeneous wireless networks physical interference model power optimization Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/ff56b1d8d5ba4d6686beae3347b82ae4
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spelling	oai:doaj.org-article:ff56b1d8d5ba4d6686beae3347b82ae42021-11-18T00:04:03ZIntegrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells2169-353610.1109/ACCESS.2021.3125240https://doaj.org/article/ff56b1d8d5ba4d6686beae3347b82ae42021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9599655/https://doaj.org/toc/2169-3536We consider heterogeneous wireless networks in the physical interference model and introduce a new formulation of the mixed-integer nonlinear programming (MINLP) problem that addresses base-station activation and many-to-many associations while minimizing power consumption. This formulation is complete, in the sense not only of tackling activations and associations in an integrated manner, but also in that the decoding possibilities allowed in the physical interference model are fully taken into account. The formulation’s integralities and resulting non-differentiabilities are all left in place as well, so solving the MINLP problem calls for somewhat unorthodox methods. Thus, we also introduce HetNetGA, a genetic algorithm that can tackle the problem as it comes, without any approximations. Though unsuitable for practical deployment, HetNetGA enables the investigation of such networks’ true possibilities, allowing for insights that more practical approaches cannot offer. In fact, the results we give, for scenarios involving both macrocells and picocells, though often aligned with what is expected, are sometimes unexpected and essentially point to the need to better understand the role of macrocells in helping provide capacity while remaining energetically advantageous. This contrasts sharply with previous approaches, which typically always spot situations in which macrocells can be accommodated. We expect HetNetGA, with its inherent ability to lead to results such as these, to be useful in helping identify and mitigate similar issues.Raphael M. GuedesJose F. De RezendeValmir C. BarbosaIEEEarticleCapacity allocationheterogeneous wireless networksphysical interference modelpower optimizationElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 149552-149559 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Capacity allocation heterogeneous wireless networks physical interference model power optimization Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Capacity allocation heterogeneous wireless networks physical interference model power optimization Electrical engineering. Electronics. Nuclear engineering TK1-9971 Raphael M. Guedes Jose F. De Rezende Valmir C. Barbosa Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
description	We consider heterogeneous wireless networks in the physical interference model and introduce a new formulation of the mixed-integer nonlinear programming (MINLP) problem that addresses base-station activation and many-to-many associations while minimizing power consumption. This formulation is complete, in the sense not only of tackling activations and associations in an integrated manner, but also in that the decoding possibilities allowed in the physical interference model are fully taken into account. The formulation’s integralities and resulting non-differentiabilities are all left in place as well, so solving the MINLP problem calls for somewhat unorthodox methods. Thus, we also introduce HetNetGA, a genetic algorithm that can tackle the problem as it comes, without any approximations. Though unsuitable for practical deployment, HetNetGA enables the investigation of such networks’ true possibilities, allowing for insights that more practical approaches cannot offer. In fact, the results we give, for scenarios involving both macrocells and picocells, though often aligned with what is expected, are sometimes unexpected and essentially point to the need to better understand the role of macrocells in helping provide capacity while remaining energetically advantageous. This contrasts sharply with previous approaches, which typically always spot situations in which macrocells can be accommodated. We expect HetNetGA, with its inherent ability to lead to results such as these, to be useful in helping identify and mitigate similar issues.
format	article
author	Raphael M. Guedes Jose F. De Rezende Valmir C. Barbosa
author_facet	Raphael M. Guedes Jose F. De Rezende Valmir C. Barbosa
author_sort	Raphael M. Guedes
title	Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
title_short	Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
title_full	Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
title_fullStr	Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
title_full_unstemmed	Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells
title_sort	integrated optimization of heterogeneous-network management and the elusive role of macrocells
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/ff56b1d8d5ba4d6686beae3347b82ae4
work_keys_str_mv	AT raphaelmguedes integratedoptimizationofheterogeneousnetworkmanagementandtheelusiveroleofmacrocells AT josefderezende integratedoptimizationofheterogeneousnetworkmanagementandtheelusiveroleofmacrocells AT valmircbarbosa integratedoptimizationofheterogeneousnetworkmanagementandtheelusiveroleofmacrocells
_version_	1718425265217994752

Integrated Optimization of Heterogeneous-Network Management and the Elusive Role of Macrocells

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