Performance of vector perturbation multiuser MIMO systems over correlated channels

Adeel Razi; Daniel J. Ryan; Jinhong Yuan; Iain B. Collings

doi:10.1109/WCNC.2010.5506749

Performance of vector perturbation multiuser MIMO systems over correlated channels

Adeel Razi^*, Daniel J. Ryan, Jinhong Yuan, Iain B. Collings

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

This paper considers the performance of the multiuser multi-antenna downlink where N_T base station antennas transmit to K non-collocated, single antenna users over correlated channels. A practical and near-capacity multi-user technique called vector perturbation precoding (VPP) is considered. For these scenarios, we derive a lower bound to the average energy of the precoded vector. We use this to approximate the effective noise gain at the receivers due to the presence of transmit side correlation. Furthermore, we obtain simple approximations for the noise gain for constant and exponential transmit correlation models. Simulation results show that our approximations predict the performance loss due to correlation remarkably well regardless of the correlation parameter.

Original language	English
Title of host publication	2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Print)	9781424463985
DOIs	https://doi.org/10.1109/WCNC.2010.5506749
Publication status	Published - 2010
Externally published	Yes
Event	IEEE Wireless Communications and Networking Conference 2010, WCNC 2010 - Sydney, NSW, Australia Duration: 18 Apr 2010 → 21 Apr 2010

Other

Other	IEEE Wireless Communications and Networking Conference 2010, WCNC 2010
Country/Territory	Australia
City	Sydney, NSW
Period	18/04/10 → 21/04/10

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10.1109/WCNC.2010.5506749

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title = "Performance of vector perturbation multiuser MIMO systems over correlated channels",

abstract = "This paper considers the performance of the multiuser multi-antenna downlink where NT base station antennas transmit to K non-collocated, single antenna users over correlated channels. A practical and near-capacity multi-user technique called vector perturbation precoding (VPP) is considered. For these scenarios, we derive a lower bound to the average energy of the precoded vector. We use this to approximate the effective noise gain at the receivers due to the presence of transmit side correlation. Furthermore, we obtain simple approximations for the noise gain for constant and exponential transmit correlation models. Simulation results show that our approximations predict the performance loss due to correlation remarkably well regardless of the correlation parameter.",

author = "Adeel Razi and Ryan, {Daniel J.} and Jinhong Yuan and Collings, {Iain B.}",

year = "2010",

doi = "10.1109/WCNC.2010.5506749",

language = "English",

isbn = "9781424463985",

pages = "1--5",

booktitle = "2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "IEEE Wireless Communications and Networking Conference 2010, WCNC 2010 ; Conference date: 18-04-2010 Through 21-04-2010",

}

Razi, A, Ryan, DJ, Yuan, J & Collings, IB 2010, Performance of vector perturbation multiuser MIMO systems over correlated channels. in 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings., 5506749, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-5, IEEE Wireless Communications and Networking Conference 2010, WCNC 2010, Sydney, NSW, Australia, 18/04/10. https://doi.org/10.1109/WCNC.2010.5506749

Performance of vector perturbation multiuser MIMO systems over correlated channels. / Razi, Adeel; Ryan, Daniel J.; Yuan, Jinhong; Collings, Iain B.

2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2010. p. 1-5 5506749.

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

TY - GEN

T1 - Performance of vector perturbation multiuser MIMO systems over correlated channels

AU - Razi, Adeel

AU - Ryan, Daniel J.

AU - Yuan, Jinhong

AU - Collings, Iain B.

PY - 2010

Y1 - 2010

N2 - This paper considers the performance of the multiuser multi-antenna downlink where NT base station antennas transmit to K non-collocated, single antenna users over correlated channels. A practical and near-capacity multi-user technique called vector perturbation precoding (VPP) is considered. For these scenarios, we derive a lower bound to the average energy of the precoded vector. We use this to approximate the effective noise gain at the receivers due to the presence of transmit side correlation. Furthermore, we obtain simple approximations for the noise gain for constant and exponential transmit correlation models. Simulation results show that our approximations predict the performance loss due to correlation remarkably well regardless of the correlation parameter.

AB - This paper considers the performance of the multiuser multi-antenna downlink where NT base station antennas transmit to K non-collocated, single antenna users over correlated channels. A practical and near-capacity multi-user technique called vector perturbation precoding (VPP) is considered. For these scenarios, we derive a lower bound to the average energy of the precoded vector. We use this to approximate the effective noise gain at the receivers due to the presence of transmit side correlation. Furthermore, we obtain simple approximations for the noise gain for constant and exponential transmit correlation models. Simulation results show that our approximations predict the performance loss due to correlation remarkably well regardless of the correlation parameter.

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BT - 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - IEEE Wireless Communications and Networking Conference 2010, WCNC 2010

Y2 - 18 April 2010 through 21 April 2010

ER -

Performance of vector perturbation multiuser MIMO systems over correlated channels

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