Precoder and capacity expressions for optimal two-user MIMO transmission with per-antenna power constraints

Jonghyun Park; Wonjin Sung; Tolga M. Duman

doi:10.1109/LCOMM.2010.100410.101473

Precoder and capacity expressions for optimal two-user MIMO transmission with per-antenna power constraints

Jonghyun Park
, Wonjin Sung
, Tolga M. Duman

Electrical, Computer, and Energy Engineering, School of (IAFSE-ECEE)

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

In this letter, multiuser multiple-input multiple-output (MIMO) precoding which achieves the Gaussian broadcast channel (GBC) capacity under the per-antenna power constraint (PAPC) is investigated. In particular, closed-form expressions for both the MIMO precoder and the corresponding sum capacity are presented for the two-user case. We show that the result can also be utilized to provide the two-user capacity expression under the total power constraint (TPC) of transmit antennas.

Original language	English (US)
Article number	5599950
Pages (from-to)	996-998
Number of pages	3
Journal	IEEE Communications Letters
Volume	14
Issue number	11
DOIs	https://doi.org/10.1109/LCOMM.2010.100410.101473
State	Published - Nov 2010

Keywords

Broadcast channel
multiuser MIMO
per-antenna power constraint
precoder
sum capacity.per-antenna power constraint

ASJC Scopus subject areas

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/LCOMM.2010.100410.101473

Cite this

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title = "Precoder and capacity expressions for optimal two-user MIMO transmission with per-antenna power constraints",

abstract = "In this letter, multiuser multiple-input multiple-output (MIMO) precoding which achieves the Gaussian broadcast channel (GBC) capacity under the per-antenna power constraint (PAPC) is investigated. In particular, closed-form expressions for both the MIMO precoder and the corresponding sum capacity are presented for the two-user case. We show that the result can also be utilized to provide the two-user capacity expression under the total power constraint (TPC) of transmit antennas.",

keywords = "Broadcast channel, multiuser MIMO, per-antenna power constraint, precoder, sum capacity.per-antenna power constraint",

author = "Jonghyun Park and Wonjin Sung and Duman, \{Tolga M.\}",

note = "Funding Information: Manuscript received August 12, 2010. The associate editor coordinating the review of this letter and approving it for publication was M. Tao. This work was supported in part by the Special Research Grant of Sogang University. J. Park and W. Sung are with the Department of Electronic Engineering, Sogang University, Seoul 121-742 Korea (e-mail: [email protected]). T. M. Duman is with the School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287-5706, USA. Digital Object Identifier 10.1109/LCOMM.2010.100410.101473",

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doi = "10.1109/LCOMM.2010.100410.101473",

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AU - Duman, Tolga M.

N1 - Funding Information: Manuscript received August 12, 2010. The associate editor coordinating the review of this letter and approving it for publication was M. Tao. This work was supported in part by the Special Research Grant of Sogang University. J. Park and W. Sung are with the Department of Electronic Engineering, Sogang University, Seoul 121-742 Korea (e-mail: [email protected]). T. M. Duman is with the School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85287-5706, USA. Digital Object Identifier 10.1109/LCOMM.2010.100410.101473

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N2 - In this letter, multiuser multiple-input multiple-output (MIMO) precoding which achieves the Gaussian broadcast channel (GBC) capacity under the per-antenna power constraint (PAPC) is investigated. In particular, closed-form expressions for both the MIMO precoder and the corresponding sum capacity are presented for the two-user case. We show that the result can also be utilized to provide the two-user capacity expression under the total power constraint (TPC) of transmit antennas.

AB - In this letter, multiuser multiple-input multiple-output (MIMO) precoding which achieves the Gaussian broadcast channel (GBC) capacity under the per-antenna power constraint (PAPC) is investigated. In particular, closed-form expressions for both the MIMO precoder and the corresponding sum capacity are presented for the two-user case. We show that the result can also be utilized to provide the two-user capacity expression under the total power constraint (TPC) of transmit antennas.

KW - Broadcast channel

KW - multiuser MIMO

KW - per-antenna power constraint

KW - precoder

KW - sum capacity.per-antenna power constraint

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Precoder and capacity expressions for optimal two-user MIMO transmission with per-antenna power constraints

Abstract

Keywords

ASJC Scopus subject areas

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