Distributed Control and Signaling using Cognitive Pilot Channels in a Centralized Cognitive Radio Network
dc.contributor.author
dc.date.accessioned
2015-02-03T14:24:35Z
dc.date.available
2015-02-03T14:24:35Z
dc.date.issued
2010
dc.identifier.issn
1942-2601
dc.identifier.uri
dc.description.abstract
In this paper, a cognitive radio network (CRN) model is presented. In this model, the control of the CRN is distributed among the frequency spectrum considered for transmission using cognitive pilot channels (CPCs). This control is performed by using frequency-division and time-division multiplexing techniques. Frequency-division is used to divide the spectrum into predetermined frequency slots in which cognitive radio users (CRUs) communicate. Then, the frequency slots are divided into sub-frequency slots, some of which are defined as CPC and used by the CRUs to communicate with a central cognitive base station (CCBS) and to determine availability in a frequency slot. Time-division is used to determine if a primary user (PU) has accessed the channel used by CRUs. Using this time-division approach, presence of PUs is detected. We have designed a CRN able to work with today’s available technologies and CRU devices that use different frequency bands of operation. Since in terms of energy, this control can be very inefficient because at specific periods of time the network might be completely used, a method for energy reduction in a centralized cognitive radio network (CRN) is presented. Results of the performance of the network will be presented in terms of the number of CRU and the time these CRUs use the CPCs for control
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
IARIA
dc.relation.isformatof
Reproducció digital del document publicat a: http://www.iariajournals.org/telecommunications/tele_v3_n34_2010_paged.pdf
dc.relation.ispartof
International Journal on Advances in Telecommunications, 2010, vol. 4, núm.3-4, p. 263-270
dc.relation.ispartofseries
Articles publicats (D-ATC)
dc.rights
Attribution-NonCommercial-ShareAlike 3.0 Spain
dc.rights.uri
dc.subject
dc.title
Distributed Control and Signaling using Cognitive Pilot Channels in a Centralized Cognitive Radio Network
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.idgrec
015180