Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloEnergy efficiency of dense wireless sensor networks: To cooperate or not to cooperate
Anno di pubblicazione2007
Formato
  • Elettronico
  • Cartaceo
Autore/iT. Q. S. Quek; D. Dardari; M. Z. Win
Affiliazioni autoriTony Q.S. Quek and Moe Z. Win are with the Laboratory for Information & Decision Systems (LIDS), Massachusetts Institute of Technology, Cambridge, USA D. Dardari is with the WiLAB, IEIIT/CNR & University of Bologna
Autori CNR e affiliazioni
  • DAVIDE DARDARI VQR
Lingua/e
  • inglese
AbstractDecentralized detection in a network of wireless sensor nodes involves the fusion of information about a phenomenon of interest (PoI) from geographically dispersed nodes. In this paper, we investigate the problem of binary decentralized detection in a dense and randomly deployed wireless sensor network (WSN), whereby the communication channels between the nodes and the fusion center are bandwidth-constrained. We consider a scenario in which sensor observations, conditioned on the alternate hypothesis, are independent but not identically distributed across the sensor nodes.We compare two different fusion architectures, namely, the parallel fusion architecture (PFA) and the cooperative fusion architecture (CFA), for such bandwidthconstrained WSNs, where each sensor node is restricted to send a 1-bit information to the fusion center. For each architecture, we derive expression for the probability of decision error at the fusion center. We propose a consensus flooding protocol for CFA and analyze its average energy consumption. We analyze the effects of PoI intensity, realistic link models, consensus flooding protocol, and network connectivity on the system reliability and average energy consumption for both fusion architectures. We demonstrate that a trade-off exists among spatial diversity gain, average energy consumption, delivery ratio of the consensus flooding protocol, network connectivity, node density, and PoI intensity in CFA. We then provide insight into the design of cooperative WSNs.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da459
Pagine a470
Pagine totali12
RivistaIEEE journal on selected areas in communications (Print)
Attiva dal 1983
Editore: Institute of Electrical and Electronics Engineers, - New York, NY.
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0733-8716
Titolo chiave: IEEE journal on selected areas in communications (Print)
Titolo proprio: IEEE journal on selected areas in communications (Print)
Titolo abbreviato: IEEE j. sel. areas commun. (Print)
Titoli alternativi:
  • Institute of Electrical and Electronics Engineers journal on selected areas in communications (Print)
  • I.E.E.E. journal on selected areas in communications (Print)
  • Selected areas in communications (Print)
Numero volume della rivista25
Fascicolo della rivista-
DOI-
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)-
Parole chiaveWireless sensor network, cooperative diversity, energy efficiency, decentralized detection
Link (URL, URI)-
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
  • ICT.P07.006.001 : Reti wireless per il monitoraggio ambientale e info-mobilità
Progetti Europei-
Allegati
Pubblicazione (documento privato )
Tipo documento: application/pdf

Dati storici
I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
Area disciplinareCommunication
Area valutazione CIVRIngegneria industriale e informatica
Rivista ISIIEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS [06406J0]