Joint downlink beamforming and power control for 3G WCDMA

Martin Schubert; Dimitrios Karadoulamas; Holger Boche; Gerald Lehmann

Joint downlink beamforming and power control for 3G WCDMA

Martin Schubert
, Dimitrios Karadoulamas
, Holger Boche
, Gerald Lehmann

Heinrich Hertz Institute
Siemens AG

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The spectral efficiency of the WCDMA downlink can significantly be increased by jointly adjusting beamformers and transmission powers. The design goal is to control individual link capacities with minimum total power. Channel information is assumed to be available at the base station. We propose a computational efficient strategy which computes the beamforming weights by jointly balancing the instantaneous carrier-to-interference ratios (CINR) measured at each Rake receiver input. Then, the SINR's at the Rake output are adjusted by an additional power control step. Potential gains over conventional techniques are shown by numerical simulations.

Original language	English
Pages (from-to)	331-335
Number of pages	5
Journal	IEEE Vehicular Technology Conference
Volume	57
Issue number	1
State	Published - 2003
Externally published	Yes
Event	57th IEEE Vehicular Technology Conference, VTC 2003-Spring - Jeju, Korea, Republic of Duration: 22 Apr 2003 → 25 Apr 2003

Cite this

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title = "Joint downlink beamforming and power control for 3G WCDMA",

abstract = "The spectral efficiency of the WCDMA downlink can significantly be increased by jointly adjusting beamformers and transmission powers. The design goal is to control individual link capacities with minimum total power. Channel information is assumed to be available at the base station. We propose a computational efficient strategy which computes the beamforming weights by jointly balancing the instantaneous carrier-to-interference ratios (CINR) measured at each Rake receiver input. Then, the SINR's at the Rake output are adjusted by an additional power control step. Potential gains over conventional techniques are shown by numerical simulations.",

author = "Martin Schubert and Dimitrios Karadoulamas and Holger Boche and Gerald Lehmann",

year = "2003",

language = "English",

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journal = "IEEE Vehicular Technology Conference",

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T1 - Joint downlink beamforming and power control for 3G WCDMA

AU - Schubert, Martin

AU - Karadoulamas, Dimitrios

AU - Boche, Holger

AU - Lehmann, Gerald

PY - 2003

Y1 - 2003

N2 - The spectral efficiency of the WCDMA downlink can significantly be increased by jointly adjusting beamformers and transmission powers. The design goal is to control individual link capacities with minimum total power. Channel information is assumed to be available at the base station. We propose a computational efficient strategy which computes the beamforming weights by jointly balancing the instantaneous carrier-to-interference ratios (CINR) measured at each Rake receiver input. Then, the SINR's at the Rake output are adjusted by an additional power control step. Potential gains over conventional techniques are shown by numerical simulations.

AB - The spectral efficiency of the WCDMA downlink can significantly be increased by jointly adjusting beamformers and transmission powers. The design goal is to control individual link capacities with minimum total power. Channel information is assumed to be available at the base station. We propose a computational efficient strategy which computes the beamforming weights by jointly balancing the instantaneous carrier-to-interference ratios (CINR) measured at each Rake receiver input. Then, the SINR's at the Rake output are adjusted by an additional power control step. Potential gains over conventional techniques are shown by numerical simulations.

UR - https://www.scopus.com/pages/publications/0042973166

M3 - Conference article

AN - SCOPUS:0042973166

SN - 0740-0551

VL - 57

SP - 331

EP - 335

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

IS - 1

T2 - 57th IEEE Vehicular Technology Conference, VTC 2003-Spring

Y2 - 22 April 2003 through 25 April 2003

ER -

Joint downlink beamforming and power control for 3G WCDMA

Abstract

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