Título:
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Estudio del rendimiento de protocolos de acceso para redes inalámbricas con antenas direccionales
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Autor/a:
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Alonso Zárate, Jesús; Cateura, A; Kartsakli, Elli; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GRCM - Grup de Recerca en Comunicacions Mòbils |
Abstract:
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The basic feature of the emerging high throughput
IEEE 802.11n standard (and other standards) is the presence of
directional antennas at network nodes. In this work, we
evaluate the performance of media access control protocols in
such envisioned IEEE 802.11n wireless LANs that operate in
point coordination function (PCF) mode. The access point (AP)
is equipped with an adaptive antenna array. In this work, we
present two schemes for coping with such mobility scenarios in
order to alleviate the potentially large delays that are
anticipated in user mobility scenarios. The first scheme is based
on location caching at the AP, namely maintaining the most
recent location of each user at a cache memory at the AP, so
that in a future time the AP selects an appropriate sector to
start the search from. The second alternative indirectly
attempts to reduce the required time by employing multiple
transceivers. Numerical results show significant performance
benefits for these two schemes. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils -Wireless LANs -Computer network protocols -Xarxes locals sense fil Wi-Fi -Protocols de xarxes d'ordinadors |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
Editor:
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Unión Científica Internacional de Radio
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