Coordination Problem in Cognitive Wireless Mesh Networks (Articolo in rivista)

Type
Label
  • Coordination Problem in Cognitive Wireless Mesh Networks (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.pmcj.2012.09.001 (literal)
Alternative label
  • Gardellin Vanessa, Das Sajal K., Lenzini Luciano (2012)
    Coordination Problem in Cognitive Wireless Mesh Networks
    in Pervasive and mobile computing (Print); Elsevier, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gardellin Vanessa, Das Sajal K., Lenzini Luciano (literal)
Pagina inizio
  • 18 (literal)
Pagina fine
  • 34 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • ID_PUMA: cnr.iit/2012-A0-009 Articlehistory: Received 19J uly 2012 Received in revised form 14S eptember 2012 Accepted 20 September 2012 Available online 2 October 2012 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IIT, Pisa, Italy; Department of Computer Science and Engineering, University of Texas at Arlington; Dipartimento di Ingegneria dell'Informazione, Università di Pisa, Italy (literal)
Titolo
  • Coordination Problem in Cognitive Wireless Mesh Networks (literal)
Abstract
  • Due to their potential to create and extend pervasive communication applications to cognitive environments with distributed control, the emerging technology of cognitive wireless mesh networks is gaining significant attention from a growing research community. However, the major challenge in cognitive networks is the adaptation to time and space variability of the available resources, namely chunks of the frequency spectrum called channels. In particular, this problem is exacerbated in cognitive mesh networks because there exists no direct communication among devices which thereby cannot establish a global (common) control channel to coordinate the entire network. Instead, only local control channels that vary depending on the time instant and location, can be established to coordinate cognitive devices among themselves. This paper first analyzes the underlying challenges and existing approaches to address the absence of a static and global control channel, and then propose a novel Control channel formation protocol, called Connor. Our protocol Connor is a fully distributed coordination scheme where cognitive mesh devices self-organize into clusters based on the similarity of available channels and on topological constraints. Compared with the existing clustering algorithms, which requires synchronization, the proposed Connor performs better in most cases without imposing synchronization. (literal)
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