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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Wiley
2015-01-01
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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. |
format | Article |
id | doaj-art-6ab09719b0c5459eb7cd40d9946375f7 |
institution | Kabale University |
issn | 1687-5869 1687-5877 |
language | English |
publishDate | 2015-01-01 |
publisher | Wiley |
record_format | Article |
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 |
work_keys_str_mv | AT zhengjiang designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems AT binhan designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems AT pengchen designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems AT fengyiyang designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems AT qibi designofjointspatialandpowerdomainmultiplexingschemeformassivemimosystems |