Título:
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Fuzzy-based spectrum handoff in cognitive radio networks crowncom
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Autor/a:
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Giupponi, Lorenza; Pérez Neira, Ana Isabel
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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; Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal |
Abstract:
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This paper focuses on spectrum handoffs in a
cognitive radio network where secondary (unlisenced) users (i.e.
cognitive radios) opportunistically use frequency channels as
long as the aggregate interference caused at the primary
(licensed) users does not exceed a certain threshold. When
harmful interference is caused to a primary user, or when the
quality of service perceived by a secondary user is not
satisfactory, the secondary user has to initiate a spectrum
handoff to quickly vacate the channel it is occupying. The
proposal in this paper is a fuzzy-based approach able to make
effective spectrum handoff decisions in a context characterized
by uncertain, incomplete and heterogeneous information. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Signal theory (Telecommunication) -IEEE 802.22 -Quality of Service -Senyal, Teoria del (Telecomunicació) |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
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