Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity

Aiming at the scenarios which consider the constraint of backhaul capacity restriction and interference threshold in ultra-dense networks (UDN),an integer linear programming (ILP) and Lagrangian dual decomposition (LDD) based joint optimization algorithm of energy efficiency and spectrum efficiency...

Full description

Saved in:
Bibliographic Details
Main Authors: Xuanli WU, Xu CHEN
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2019-12-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019205/
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841539360800899072
author Xuanli WU
Xu CHEN
author_facet Xuanli WU
Xu CHEN
author_sort Xuanli WU
collection DOAJ
description Aiming at the scenarios which consider the constraint of backhaul capacity restriction and interference threshold in ultra-dense networks (UDN),an integer linear programming (ILP) and Lagrangian dual decomposition (LDD) based joint optimization algorithm of energy efficiency and spectrum efficiency was proposed.In the proposed algorithms,the user association problem with the constraint of limited backhaul capacity was modelled as an ILP problem and then finished the connection between the user and the base station of microcell by solving this problem with dynamic programming method.Therefor,Lagrangian dual decomposition (LDD) was applied in an iteration algorithm for spectrum resource allocation and power allocation.The simulation results show that compared with traditional schemes,the proposed algorithm can significantly improve the energy efficiency and spectrum efficiency of system and use the microcell’s load capacity more efficiently.
format Article
id doaj-art-85f7518ed5aa430eba7935a1726bddc1
institution Kabale University
issn 1000-436X
language zho
publishDate 2019-12-01
publisher Editorial Department of Journal on Communications
record_format Article
series Tongxin xuebao
spelling doaj-art-85f7518ed5aa430eba7935a1726bddc12025-01-14T07:18:04ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2019-12-0140869759730834Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacityXuanli WUXu CHENAiming at the scenarios which consider the constraint of backhaul capacity restriction and interference threshold in ultra-dense networks (UDN),an integer linear programming (ILP) and Lagrangian dual decomposition (LDD) based joint optimization algorithm of energy efficiency and spectrum efficiency was proposed.In the proposed algorithms,the user association problem with the constraint of limited backhaul capacity was modelled as an ILP problem and then finished the connection between the user and the base station of microcell by solving this problem with dynamic programming method.Therefor,Lagrangian dual decomposition (LDD) was applied in an iteration algorithm for spectrum resource allocation and power allocation.The simulation results show that compared with traditional schemes,the proposed algorithm can significantly improve the energy efficiency and spectrum efficiency of system and use the microcell’s load capacity more efficiently.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019205/ultra-dense networkenergy efficiencyspectrum efficiencyinteger linear programmingLagrangian dual decomposition
spellingShingle Xuanli WU
Xu CHEN
Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
Tongxin xuebao
ultra-dense network
energy efficiency
spectrum efficiency
integer linear programming
Lagrangian dual decomposition
title Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
title_full Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
title_fullStr Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
title_full_unstemmed Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
title_short Joint energy efficiency and spectral efficiency optimization algorithm for UDN under the restriction of interference threshold and backhaul capacity
title_sort joint energy efficiency and spectral efficiency optimization algorithm for udn under the restriction of interference threshold and backhaul capacity
topic ultra-dense network
energy efficiency
spectrum efficiency
integer linear programming
Lagrangian dual decomposition
url http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019205/
work_keys_str_mv AT xuanliwu jointenergyefficiencyandspectralefficiencyoptimizationalgorithmforudnundertherestrictionofinterferencethresholdandbackhaulcapacity
AT xuchen jointenergyefficiencyandspectralefficiencyoptimizationalgorithmforudnundertherestrictionofinterferencethresholdandbackhaulcapacity