Linear selective channel inversion technique for multi-user MIMO systems

Lin Yang; Emad Alsusa; Ulises Pineda Rico; Enrique Stevens Navarro

doi:10.1109/VETECF.2010.5594135

Linear selective channel inversion technique for multi-user MIMO systems

Lin Yang, Emad Alsusa, Ulises Pineda Rico, Enrique Stevens Navarro

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

Abstract

Multi-user MIMO systems have the potential to combine the high capacity achievable with MIMO processing with the benefits of space-division multiple access. Although recent theoretical results show that the sum capacity grows linearly with the minimum of the number of antennas and users, the sum rate of channel inversion does not due to the large spread in the singular values of the channel matrix. In this paper, we introduce a suitably modified channel inversion technique which randomises the phases of the channel to mitigate the impact of the ill-conditioned channel and obtains near-sum-capacity of the multi-user MIMO systems. The proposed technique not only achieves significant improvement over conventional linear precoding techniques at all signal-to-noise ratios (SNRs) but also outperforms the convolutional precoder at low SNRs. ©2010 IEEE.

Original language	English
Title of host publication	IEEE Vehicular Technology Conference\|IEEE Veh Technol Conf
Place of Publication	ieeexplorer and conference proceedings
Publisher	IEEE
ISBN (Print)	9781424435746
DOIs	https://doi.org/10.1109/VETECF.2010.5594135
Publication status	Published - 2010
Event	2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall - Ottawa, ON Duration: 1 Jul 2010 → …

Conference

Conference	2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall
City	Ottawa, ON
Period	1/07/10 → …

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10.1109/VETECF.2010.5594135

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@inproceedings{9ef8ae9fa9fb40b18f23ed644fe5f341,

title = "Linear selective channel inversion technique for multi-user MIMO systems",

abstract = "Multi-user MIMO systems have the potential to combine the high capacity achievable with MIMO processing with the benefits of space-division multiple access. Although recent theoretical results show that the sum capacity grows linearly with the minimum of the number of antennas and users, the sum rate of channel inversion does not due to the large spread in the singular values of the channel matrix. In this paper, we introduce a suitably modified channel inversion technique which randomises the phases of the channel to mitigate the impact of the ill-conditioned channel and obtains near-sum-capacity of the multi-user MIMO systems. The proposed technique not only achieves significant improvement over conventional linear precoding techniques at all signal-to-noise ratios (SNRs) but also outperforms the convolutional precoder at low SNRs. {\textcopyright}2010 IEEE.",

author = "Lin Yang and Emad Alsusa and Rico, {Ulises Pineda} and Navarro, {Enrique Stevens}",

year = "2010",

doi = "10.1109/VETECF.2010.5594135",

language = "English",

isbn = "9781424435746",

booktitle = "IEEE Vehicular Technology Conference|IEEE Veh Technol Conf",

publisher = "IEEE",

address = "United States",

note = "2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall ; Conference date: 01-07-2010",

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TY - GEN

T1 - Linear selective channel inversion technique for multi-user MIMO systems

AU - Yang, Lin

AU - Alsusa, Emad

AU - Rico, Ulises Pineda

AU - Navarro, Enrique Stevens

PY - 2010

Y1 - 2010

N2 - Multi-user MIMO systems have the potential to combine the high capacity achievable with MIMO processing with the benefits of space-division multiple access. Although recent theoretical results show that the sum capacity grows linearly with the minimum of the number of antennas and users, the sum rate of channel inversion does not due to the large spread in the singular values of the channel matrix. In this paper, we introduce a suitably modified channel inversion technique which randomises the phases of the channel to mitigate the impact of the ill-conditioned channel and obtains near-sum-capacity of the multi-user MIMO systems. The proposed technique not only achieves significant improvement over conventional linear precoding techniques at all signal-to-noise ratios (SNRs) but also outperforms the convolutional precoder at low SNRs. ©2010 IEEE.

AB - Multi-user MIMO systems have the potential to combine the high capacity achievable with MIMO processing with the benefits of space-division multiple access. Although recent theoretical results show that the sum capacity grows linearly with the minimum of the number of antennas and users, the sum rate of channel inversion does not due to the large spread in the singular values of the channel matrix. In this paper, we introduce a suitably modified channel inversion technique which randomises the phases of the channel to mitigate the impact of the ill-conditioned channel and obtains near-sum-capacity of the multi-user MIMO systems. The proposed technique not only achieves significant improvement over conventional linear precoding techniques at all signal-to-noise ratios (SNRs) but also outperforms the convolutional precoder at low SNRs. ©2010 IEEE.

U2 - 10.1109/VETECF.2010.5594135

DO - 10.1109/VETECF.2010.5594135

M3 - Conference contribution

SN - 9781424435746

BT - IEEE Vehicular Technology Conference|IEEE Veh Technol Conf

PB - IEEE

CY - ieeexplorer and conference proceedings

T2 - 2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall

Y2 - 1 July 2010

ER -

Linear selective channel inversion technique for multi-user MIMO systems

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