Optimized power allocation for layered-steered space-time codes

Ahmad S. Salim; Salam A. Zummo; Samir N. Al-Ghadhban; Ping Cheng Yeh

doi:10.1007/s11277-011-0441-1

Optimized power allocation for layered-steered space-time codes

Ahmad S. Salim^*, Salam A. Zummo, Samir N. Al-Ghadhban, Ping Cheng Yeh

^*Corresponding author for this work

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

Abstract

Layered Steered Space-Time Codes (LSSTC) is a recently proposed multiple-input multiple-output system that combines the benefits of vertical Bell Labs space-time (VBLAST) scheme, space-time block codes and beamforming. We suggest a new downlink scheme employing LSSTC with asymmetric power allocation, by assuming that the user feeds the BS with the average signal-to-noise ratio per VBLAST layer through the uplink feedback channel. The motivation behind proposing such a system is to enhance the error performance by assigning power to the layers in an optimal manner. We refer to the system proposed as the optimal power allocation LSSTC (OPA-LSSTC). Our analysis is general such that it includes asymmetric layered systems in which each layer may have different number of antennas and also the power can be assigned to layers asymmetrically.

Original language	English
Pages (from-to)	95-113
Number of pages	19
Journal	Wireless Personal Communications
Volume	68
Issue number	1
DOIs	https://doi.org/10.1007/s11277-011-0441-1
State	Published - Jan 2013

Bibliographical note

Funding Information:
Acknowledgments The authors would like to acknowledge the support provided by King Fahd University of Petroleum and Minerals (KFUPM) and King Abdulaziz City for Science and Technology (KACST) through the Science and Technology Unit at KFUPM for funding this work through project number 08-ELE39-4 as part of the National Science, Technology and Innovation Plan.

Keywords

LSSTC
Layered-steered space-time codes
Optimal power allocation
Performance analysis

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1007/s11277-011-0441-1

Cite this

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title = "Optimized power allocation for layered-steered space-time codes",

abstract = "Layered Steered Space-Time Codes (LSSTC) is a recently proposed multiple-input multiple-output system that combines the benefits of vertical Bell Labs space-time (VBLAST) scheme, space-time block codes and beamforming. We suggest a new downlink scheme employing LSSTC with asymmetric power allocation, by assuming that the user feeds the BS with the average signal-to-noise ratio per VBLAST layer through the uplink feedback channel. The motivation behind proposing such a system is to enhance the error performance by assigning power to the layers in an optimal manner. We refer to the system proposed as the optimal power allocation LSSTC (OPA-LSSTC). Our analysis is general such that it includes asymmetric layered systems in which each layer may have different number of antennas and also the power can be assigned to layers asymmetrically.",

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author = "Salim, {Ahmad S.} and Zummo, {Salam A.} and Al-Ghadhban, {Samir N.} and Yeh, {Ping Cheng}",

note = "Funding Information: Acknowledgments The authors would like to acknowledge the support provided by King Fahd University of Petroleum and Minerals (KFUPM) and King Abdulaziz City for Science and Technology (KACST) through the Science and Technology Unit at KFUPM for funding this work through project number 08-ELE39-4 as part of the National Science, Technology and Innovation Plan.",

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doi = "10.1007/s11277-011-0441-1",

language = "English",

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AU - Al-Ghadhban, Samir N.

AU - Yeh, Ping Cheng

N1 - Funding Information: Acknowledgments The authors would like to acknowledge the support provided by King Fahd University of Petroleum and Minerals (KFUPM) and King Abdulaziz City for Science and Technology (KACST) through the Science and Technology Unit at KFUPM for funding this work through project number 08-ELE39-4 as part of the National Science, Technology and Innovation Plan.

PY - 2013/1

Y1 - 2013/1

N2 - Layered Steered Space-Time Codes (LSSTC) is a recently proposed multiple-input multiple-output system that combines the benefits of vertical Bell Labs space-time (VBLAST) scheme, space-time block codes and beamforming. We suggest a new downlink scheme employing LSSTC with asymmetric power allocation, by assuming that the user feeds the BS with the average signal-to-noise ratio per VBLAST layer through the uplink feedback channel. The motivation behind proposing such a system is to enhance the error performance by assigning power to the layers in an optimal manner. We refer to the system proposed as the optimal power allocation LSSTC (OPA-LSSTC). Our analysis is general such that it includes asymmetric layered systems in which each layer may have different number of antennas and also the power can be assigned to layers asymmetrically.

AB - Layered Steered Space-Time Codes (LSSTC) is a recently proposed multiple-input multiple-output system that combines the benefits of vertical Bell Labs space-time (VBLAST) scheme, space-time block codes and beamforming. We suggest a new downlink scheme employing LSSTC with asymmetric power allocation, by assuming that the user feeds the BS with the average signal-to-noise ratio per VBLAST layer through the uplink feedback channel. The motivation behind proposing such a system is to enhance the error performance by assigning power to the layers in an optimal manner. We refer to the system proposed as the optimal power allocation LSSTC (OPA-LSSTC). Our analysis is general such that it includes asymmetric layered systems in which each layer may have different number of antennas and also the power can be assigned to layers asymmetrically.

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Optimized power allocation for layered-steered space-time codes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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