Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management

Cellular mobile systems aim at aggressive spectrum reuse to achieve high spectral efficiency. Unfortunately, this leads to unacceptable interference near cell borders. To control this, network multi-input multiple-output (MIMO) can be adopted to improve coverage and cell-edge throughput through mult...

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Autores principales:	Jeng-Shin Sheu, Kuan-Ming Huang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	single-user network MIMO multi-user network MIMO OFDMA power management Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/cb13aef74a9c4ce0acb81920139244db
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spelling	oai:doaj.org-article:cb13aef74a9c4ce0acb81920139244db2021-11-11T15:19:46ZPerformance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management10.3390/app1121102982076-3417https://doaj.org/article/cb13aef74a9c4ce0acb81920139244db2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10298https://doaj.org/toc/2076-3417Cellular mobile systems aim at aggressive spectrum reuse to achieve high spectral efficiency. Unfortunately, this leads to unacceptable interference near cell borders. To control this, network multi-input multiple-output (MIMO) can be adopted to improve coverage and cell-edge throughput through multi-cell cooperation. With network MIMO, multiple geographically separated base stations (BSs) cooperatively serve their cell-edge users (CEUs) using their antennas, acting together as a network of distributed antenna array. It can be single-user (SU) or multi-user (MU) network MIMO by coordinating channel allocation in adjacent cells. In this paper, we make a capacity comparison of SU- and MU-network MIMO. In network MIMO, a collaborative BS simultaneously serves its own cell-center users (CCUs) and CEUs, and the CEUs of other partner BSs under a power constraint. As a result, power management among three types of users (intra-cell CCUs/CEUs, inter-cell CEUs) becomes necessary. Accordingly, we propose power management methods to help raise the signal strength of inter-cell CEUs and in the meantime gratify the performance of intra-cell users. Simulation results show that MU-network MIMO with superposition coding offers much better CEU capacity than SU-network MIMO. As for the CCU capacity, MU-network MIMO is generally better than SU-network MIMO.Jeng-Shin SheuKuan-Ming HuangMDPI AGarticlesingle-user network MIMOmulti-user network MIMOOFDMApower managementTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10298, p 10298 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	single-user network MIMO multi-user network MIMO OFDMA power management Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	single-user network MIMO multi-user network MIMO OFDMA power management Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jeng-Shin Sheu Kuan-Ming Huang Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
description	Cellular mobile systems aim at aggressive spectrum reuse to achieve high spectral efficiency. Unfortunately, this leads to unacceptable interference near cell borders. To control this, network multi-input multiple-output (MIMO) can be adopted to improve coverage and cell-edge throughput through multi-cell cooperation. With network MIMO, multiple geographically separated base stations (BSs) cooperatively serve their cell-edge users (CEUs) using their antennas, acting together as a network of distributed antenna array. It can be single-user (SU) or multi-user (MU) network MIMO by coordinating channel allocation in adjacent cells. In this paper, we make a capacity comparison of SU- and MU-network MIMO. In network MIMO, a collaborative BS simultaneously serves its own cell-center users (CCUs) and CEUs, and the CEUs of other partner BSs under a power constraint. As a result, power management among three types of users (intra-cell CCUs/CEUs, inter-cell CEUs) becomes necessary. Accordingly, we propose power management methods to help raise the signal strength of inter-cell CEUs and in the meantime gratify the performance of intra-cell users. Simulation results show that MU-network MIMO with superposition coding offers much better CEU capacity than SU-network MIMO. As for the CCU capacity, MU-network MIMO is generally better than SU-network MIMO.
format	article
author	Jeng-Shin Sheu Kuan-Ming Huang
author_facet	Jeng-Shin Sheu Kuan-Ming Huang
author_sort	Jeng-Shin Sheu
title	Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
title_short	Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
title_full	Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
title_fullStr	Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
title_full_unstemmed	Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management
title_sort	performance comparison for single-user and multi-user network mimo cellular systems with power management
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cb13aef74a9c4ce0acb81920139244db
work_keys_str_mv	AT jengshinsheu performancecomparisonforsingleuserandmultiusernetworkmimocellularsystemswithpowermanagement AT kuanminghuang performancecomparisonforsingleuserandmultiusernetworkmimocellularsystemswithpowermanagement
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Performance Comparison for Single-User and Multi-User Network MIMO Cellular Systems with Power Management

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