Transmitter-side antennas correlation in SVD-assisted MIMO systems

Ahrens, Andreas; Cano Broncano, Francisco y Benavente Peces, César (2014). Transmitter-side antennas correlation in SVD-assisted MIMO systems. En: "10th International Joint Conference on E-Business and Telecommunications, ICETE 2013", 29/07/2013 - 31/07/2013, Reykjavik, Iceland. ISBN 978-3-662-44787-1. pp. 402-417.

Descripción

Título: Transmitter-side antennas correlation in SVD-assisted MIMO systems
Autor/es:
  • Ahrens, Andreas
  • Cano Broncano, Francisco
  • Benavente Peces, César
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 10th International Joint Conference on E-Business and Telecommunications, ICETE 2013
Fechas del Evento: 29/07/2013 - 31/07/2013
Lugar del Evento: Reykjavik, Iceland
Título del Libro: E-Business and telecommunications: international Joint Conference, ICETE 2013, Reykjavik, Iceland, July 29-31, 2013, revised selected papers
Fecha: 2014
ISBN: 978-3-662-44787-1
Volumen: 456
Materias:
Palabras Clave Informales: Multiple-Input Multiple-Output (MIMO) System Wireless transmission Singular value decomposition (SVD) Bit allocation Power allocation Antennas correlation
Escuela: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Departamento: Teoría de la Señal y Comunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

MIMO techniques allow increasing wireless channel performance by decreasing the BER and increasing the channel throughput and in consequence are included in current mobile communication standards. MIMO techniques are based on benefiting the existence of multipath in wireless communications and the application of appropriate signal processing techniques. The singular value decomposition (SVD) is a popular signal processing technique which, based on the perfect channel state information (PCSI) knowledge at both the transmitter and receiver sides, removes inter-antenna interferences and improves channel performance. Nevertheless, the proximity of the multiple antennas at each front-end produces the so called antennas correlation effect due to the similarity of the various physical paths. In consequence, antennas correlation drops the MIMO channel performance. This investigation focuses on the analysis of a MIMO channel under transmitter-side antennas correlation conditions. First, antennas correlation is analyzed and characterized by the correlation coefficients. The analysis describes the relation between antennas correlation and the appearance of predominant layers which significantly affect the channel performance. Then, based on the SVD, pre- and post-processing is applied to remove inter-antenna interferences. Finally, bit- and power allocation strategies are applied to reach the best performance. The resulting BER reveals that antennas correlation effect diminishes the channel performance and that not necessarily all MIMO layers must be activated to obtain the best performance.

Más información

ID de Registro: 36895
Identificador DC: http://oa.upm.es/36895/
Identificador OAI: oai:oa.upm.es:36895
URL Oficial: http://www.icete.org/Home.aspx?y=2013
Depositado por: Memoria Investigacion
Depositado el: 29 Mar 2016 16:16
Ultima Modificación: 29 Mar 2016 16:16
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