Modulation-mode assignment in SVD-assisted multiuser MIMO-OFDM systems

Aust, Sebastian; Ahrens, Andreas y Benavente Peces, César (2011). Modulation-mode assignment in SVD-assisted multiuser MIMO-OFDM systems. En: "International Conference on Wireless Information Networks and Systems, WINSYS 2011", 18/06/2011 - 21/06/2011, Sevilla, España.

Descripción

Título: Modulation-mode assignment in SVD-assisted multiuser MIMO-OFDM systems
Autor/es:
  • Aust, Sebastian
  • Ahrens, Andreas
  • Benavente Peces, César
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: International Conference on Wireless Information Networks and Systems, WINSYS 2011
Fechas del Evento: 18/06/2011 - 21/06/2011
Lugar del Evento: Sevilla, España
Título del Libro: Proceedings of the International Conference on Wireless Information Networks and Systems
Fecha: 2011
Materias:
Escuela: E.U.I.T. Telecomunicación (UPM) [antigua denominación]
Departamento: Ingeniería de Circuitos y Sistemas [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 12139
Identificador DC: http://oa.upm.es/12139/
Identificador OAI: oai:oa.upm.es:12139
Depositado por: Memoria Investigacion
Depositado el: 10 Sep 2012 10:52
Ultima Modificación: 21 Abr 2016 11:19
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