Broadband Channel Long Delay Cluster Measurements and Analysis at 2.4GHz in Subway Tunnels

He, Ruisi; Zhong, Zhangdui y Briso Rodriguez, Cesar (2011). Broadband Channel Long Delay Cluster Measurements and Analysis at 2.4GHz in Subway Tunnels. En: "2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)", 15/08/2011 - 18/08/2011, Yokohama, Japón. ISBN 978-1-4244-8332-7. pp. 1-5.

Descripción

Título: Broadband Channel Long Delay Cluster Measurements and Analysis at 2.4GHz in Subway Tunnels
Autor/es:
  • He, Ruisi
  • Zhong, Zhangdui
  • Briso Rodriguez, Cesar
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)
Fechas del Evento: 15/08/2011 - 18/08/2011
Lugar del Evento: Yokohama, Japón
Título del Libro: Proceedings of 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)
Fecha: 2011
ISBN: 978-1-4244-8332-7
Materias:
Escuela: E.U.I.T. Telecomunicación (UPM) [antigua denominación]
Departamento: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (874kB) | Vista Previa

Resumen

The delay caused by the reflected ray in broadband communication has a great influence on the communications in subway tunnel. This paper presents measurements taken in subway tunnels at 2.4 GHz, with 5 MHz bandwidth. According to propagation characteristics of tunnel, the measurements were carried out with a frequency domain channel sounding technique, in three typical scenarios: line of sight (LOS), Non-line-of-sight (NLOS) and far line of sight (FLOS), which lead to different delay distributions. Firstly IFFT was chosen to get channel impulse response (CIR) h(t) from measured three-dimensional transfer functions. Power delay profile (PDP) was investigated to give an overview of broadband channel model. Thereafter, a long delay caused by the obturation of tunnel is observed and investigated in all the scenarios. The measurements show that the reflection can be greatly remained by the tunnel, which leads to long delay cluster where the reflection, but direct ray, makes the main contribution for radio wave propagation. Four important parameters: distribution of whole PDP power, first peak arriving time, reflection cluster duration and PDP power distribution of reflection cluster were studied to give a detailed description of long delay characteristic in tunnel. This can be used to ensure high capacity communication in tunnels

Más información

ID de Registro: 13179
Identificador DC: http://oa.upm.es/13179/
Identificador OAI: oai:oa.upm.es:13179
URL Oficial: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5956539
Depositado por: Memoria Investigacion
Depositado el: 29 Nov 2012 11:09
Ultima Modificación: 21 Abr 2016 12:30
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM