Optimizing random unitary beamforming for energy efficiency in MIMO broadcast channels

Jae Hong Kwon; Young-Chai Ko; Hong Chuan Yang

doi:10.1109/VTCFall.2016.7881140

Optimizing random unitary beamforming for energy efficiency in MIMO broadcast channels

Jae Hong Kwon, Young-Chai Ko, Hong Chuan Yang

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Random unitary beamforming (RUB) achieves multiuser diversity gain over multiple-input multiple-output (MIMO) broadcast channels with channel state information (CSI). In this paper, we optimize RUB schemes in terms of energy efficiency (EE) which is defined as "capacity/power consumption". The key idea of our approach is to derive EE-optimal number of antennas and transmit power based on mathematical analysis. Using simple approximation expression, we derive efficient approach to find global optimum. Simulation results demonstrate that analytical results are accurate.

Original language	English
Title of host publication	2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509017010
DOIs	https://doi.org/10.1109/VTCFall.2016.7881140
Publication status	Published - 2017 Mar 17
Event	84th IEEE Vehicular Technology Conference, VTC Fall 2016 - Montreal, Canada Duration: 2016 Sept 18 → 2016 Sept 21

Other

Other	84th IEEE Vehicular Technology Conference, VTC Fall 2016
Country/Territory	Canada
City	Montreal
Period	16/9/18 → 16/9/21

Keywords

Circuit power consumption
Energy efficiency
Multiplexing gain
Power allocation
Random unitary beamforming

ASJC Scopus subject areas

Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/VTCFall.2016.7881140

Cite this

Optimizing random unitary beamforming for energy efficiency in MIMO broadcast channels. / Kwon, Jae Hong; Ko, Young-Chai; Yang, Hong Chuan.

2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. 7881140.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kwon, JH, Ko, Y-C & Yang, HC 2017, Optimizing random unitary beamforming for energy efficiency in MIMO broadcast channels. in 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings., 7881140, Institute of Electrical and Electronics Engineers Inc., 84th IEEE Vehicular Technology Conference, VTC Fall 2016, Montreal, Canada, 16/9/18. https://doi.org/10.1109/VTCFall.2016.7881140

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abstract = "Random unitary beamforming (RUB) achieves multiuser diversity gain over multiple-input multiple-output (MIMO) broadcast channels with channel state information (CSI). In this paper, we optimize RUB schemes in terms of energy efficiency (EE) which is defined as {"}capacity/power consumption{"}. The key idea of our approach is to derive EE-optimal number of antennas and transmit power based on mathematical analysis. Using simple approximation expression, we derive efficient approach to find global optimum. Simulation results demonstrate that analytical results are accurate.",

keywords = "Circuit power consumption, Energy efficiency, Multiplexing gain, Power allocation, Random unitary beamforming",

author = "Kwon, {Jae Hong} and Young-Chai Ko and Yang, {Hong Chuan}",

year = "2017",

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doi = "10.1109/VTCFall.2016.7881140",

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AU - Ko, Young-Chai

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N2 - Random unitary beamforming (RUB) achieves multiuser diversity gain over multiple-input multiple-output (MIMO) broadcast channels with channel state information (CSI). In this paper, we optimize RUB schemes in terms of energy efficiency (EE) which is defined as "capacity/power consumption". The key idea of our approach is to derive EE-optimal number of antennas and transmit power based on mathematical analysis. Using simple approximation expression, we derive efficient approach to find global optimum. Simulation results demonstrate that analytical results are accurate.

AB - Random unitary beamforming (RUB) achieves multiuser diversity gain over multiple-input multiple-output (MIMO) broadcast channels with channel state information (CSI). In this paper, we optimize RUB schemes in terms of energy efficiency (EE) which is defined as "capacity/power consumption". The key idea of our approach is to derive EE-optimal number of antennas and transmit power based on mathematical analysis. Using simple approximation expression, we derive efficient approach to find global optimum. Simulation results demonstrate that analytical results are accurate.

KW - Circuit power consumption

KW - Energy efficiency

KW - Multiplexing gain

KW - Power allocation

KW - Random unitary beamforming

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M3 - Conference contribution

AN - SCOPUS:85017030840

BT - 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings

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T2 - 84th IEEE Vehicular Technology Conference, VTC Fall 2016

Y2 - 18 September 2016 through 21 September 2016

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Optimizing random unitary beamforming for energy efficiency in MIMO broadcast channels

Abstract

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Keywords

ASJC Scopus subject areas

UN SDGs

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