Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems

Massive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (TDD) operation that relies on channel recipro...

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Main Authors: Zheng Jiang, Bin Han, Peng Chen, Fengyi Yang, Qi Bi
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2015/368463
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author Zheng Jiang
Bin Han
Peng Chen
Fengyi Yang
Qi Bi
author_facet Zheng Jiang
Bin Han
Peng Chen
Fengyi Yang
Qi Bi
author_sort Zheng Jiang
collection DOAJ
description Massive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (TDD) operation that relies on channel reciprocity between uplink and downlink channels. For Frequency Division Duplex (FDD) systems, with continued efforts, some downlink multiuser MIMO scheme was recently proposed in order to enable “massive MIMO” gains and simplified system operations with limited number of radio frequency (RF) chains in FDD system. However these schemes, such as Joint Spatial Division and Multiplexing (JSDM) scheme and hybrid precoding scheme, only focus on multiuser transmission in spatial domain. Different from most of the existing works, this paper proposes Joint Spatial and Power Multiplexing (JSPM) scheme in FDD systems. It extends existing FDD schemes from spatial division and multiplexing to joint spatial and power domain to achieve more multiplexing gain. The user grouping and scheduling scheme of JSPM is studied and the asymptotic expression for the sum capacity is derived as well. Finally, simulations are conducted to illustrate the effectiveness of the proposed scheme.
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series International Journal of Antennas and Propagation
spelling doaj-art-6ab09719b0c5459eb7cd40d9946375f72025-02-03T05:57:47ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/368463368463Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO SystemsZheng Jiang0Bin Han1Peng Chen2Fengyi Yang3Qi Bi4Technology Innovation Center, China Telecom Corporation Limited, China Telecom Beijing Information Science and Technology Innovation Park, Southern Zone of Future Science and Technology City, Beiqijia, Changping, Beijing 102209, ChinaTechnology Innovation Center, China Telecom Corporation Limited, China Telecom Beijing Information Science and Technology Innovation Park, Southern Zone of Future Science and Technology City, Beiqijia, Changping, Beijing 102209, ChinaTechnology Innovation Center, China Telecom Corporation Limited, China Telecom Beijing Information Science and Technology Innovation Park, Southern Zone of Future Science and Technology City, Beiqijia, Changping, Beijing 102209, ChinaTechnology Innovation Center, China Telecom Corporation Limited, China Telecom Beijing Information Science and Technology Innovation Park, Southern Zone of Future Science and Technology City, Beiqijia, Changping, Beijing 102209, ChinaTechnology Innovation Center, China Telecom Corporation Limited, China Telecom Beijing Information Science and Technology Innovation Park, Southern Zone of Future Science and Technology City, Beiqijia, Changping, Beijing 102209, ChinaMassive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (TDD) operation that relies on channel reciprocity between uplink and downlink channels. For Frequency Division Duplex (FDD) systems, with continued efforts, some downlink multiuser MIMO scheme was recently proposed in order to enable “massive MIMO” gains and simplified system operations with limited number of radio frequency (RF) chains in FDD system. However these schemes, such as Joint Spatial Division and Multiplexing (JSDM) scheme and hybrid precoding scheme, only focus on multiuser transmission in spatial domain. Different from most of the existing works, this paper proposes Joint Spatial and Power Multiplexing (JSPM) scheme in FDD systems. It extends existing FDD schemes from spatial division and multiplexing to joint spatial and power domain to achieve more multiplexing gain. The user grouping and scheduling scheme of JSPM is studied and the asymptotic expression for the sum capacity is derived as well. Finally, simulations are conducted to illustrate the effectiveness of the proposed scheme.http://dx.doi.org/10.1155/2015/368463
spellingShingle Zheng Jiang
Bin Han
Peng Chen
Fengyi Yang
Qi Bi
Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
International Journal of Antennas and Propagation
title Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
title_full Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
title_fullStr Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
title_full_unstemmed Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
title_short Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
title_sort design of joint spatial and power domain multiplexing scheme for massive mimo systems
url http://dx.doi.org/10.1155/2015/368463
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AT binhan designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems
AT pengchen designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems
AT fengyiyang designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems
AT qibi designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems