Modulation-mode Assignment in SVD-assisted Multiuser MIMO-OFDM Systems

Aust, Sebastian and Ahrens, Andreas and Benavente Peces, César (2011). Modulation-mode Assignment in SVD-assisted Multiuser MIMO-OFDM Systems. In: "WINSYS 2011 - International Conference on Wireless Information Networks and Systems.", 18/07/2011 - 21/07/2011, Sevilla, España. ISBN 978-989-8425-73-7. pp. 1-4.

Description

Title: Modulation-mode Assignment in SVD-assisted Multiuser MIMO-OFDM Systems
Author/s:
  • Aust, Sebastian
  • Ahrens, Andreas
  • Benavente Peces, César
Item Type: Presentation at Congress or Conference (Article)
Event Title: WINSYS 2011 - International Conference on Wireless Information Networks and Systems.
Event Dates: 18/07/2011 - 21/07/2011
Event Location: Sevilla, España
Title of Book: Proccedings of the WINSYS 2011 - International Conference on Wireless Information Networks and Systems.
Date: 2011
ISBN: 978-989-8425-73-7
Subjects:
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Ingeniería de Circuitos y Sistemas [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In order to comply with the demand on increasing available data rates in particular in wireless technologies, systems with multiple transmit and receive antennas, also called MIMO (multiple-input multiple-output) systems, have become indispensable for future generations of wireless systems. Due to the strongly increasing demand in high-data rate transmission systems, frequency non-selective MIMO links have reached a state of maturity and frequency selective MIMO links are in the focus of interest. In this field, the combination of MIMO transmission and OFDM (orthogonal frequency division multiplexing) can be considered as an essential part of fulfilling the requirements of future generations of wireless systems. However, single-user scenarios have reached a state of maturity. By contrast multiple users’ scenarios require substantial further research, where in comparison to ZF (zero-forcing) multiuser transmission techniques, the individual user’s channel characteristics are taken into consideration in this contribution. The performed joint optimization of the number of activated MIMO layers and the number of transmitted bits per subcarrier along with the appropriate allocation of the transmit power shows that not necessarily all user-specific MIMO layers per subcarrier have to be activated in order to minimize the overall BER under the constraint of a given fixed data throughput

More information

Item ID: 13046
DC Identifier: http://oa.upm.es/13046/
OAI Identifier: oai:oa.upm.es:13046
Official URL: http://www.winsys.icete.org/WINSYS2011/
Deposited by: Memoria Investigacion
Deposited on: 05 Dec 2012 10:01
Last Modified: 21 Apr 2016 12:21
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