Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloUpper Bounds to the Performance of Cooperative Traffic Relaying in Wireless Linear Networks
Anno di pubblicazione2013
Autore/iAlessandro Nordio, Vahid Forutan, Carla-Fabiana Chiasserini
Affiliazioni autori- Vahid Forutan is with Politecnico di Torino, Torino, Italy - Carla-Fabiana Chiasserini is with Politecnico di Torino, Torino, Italy
Autori CNR e affiliazioni
  • inglese
AbstractWireless networks with linear topology, where nodes generate their own traffic and relay other nodes' traffic, have attracted increasing attention. Indeed, they well represent sensor networks monitoring paths or streets, as well as multihop networks for videosurveillance of roads or vehicular traffic. We study the performance limits of such network systems when (i) the nodes' transmissions can reach receivers farther than one-hop distance from the sender, (ii) the transmitters cooperate in the data delivery, and (iii) interference due to concurrent transmissions is taken into account. By adopting an information-theoretic approach, we derive analytical bounds to the achievable data rate in both the cases where the nodes have full-duplex and half-duplex radios. The expressions we provide are mathematically tractable and allow the analysis of multihop networks with a large number of nodes. Our analysis highlights that increasing the number of cooperating transmitters beyond two leads to a very limited gain in the achievable data rate. Also, for half-duplex radios, it indicates the existence of dominant network states, which have a major influence on the bound. It follows that efficient, yet simple, communication strategies can be designed by considering at most two cooperating transmitters and by letting half-duplex nodes operate according to the aforementioned dominant states.
Lingua abstractinglese
Altro abstract-
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Pagine da1
Pagine a9
Pagine totali9
RivistaIEEE transactions on wireless communications
Attiva dal 2002
Editore: Institute of Electrical and Electronics Engineers, - New York, NY
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 1536-1276
Titolo chiave: IEEE transactions on wireless communications
Titolo proprio: IEEE transactions on wireless communications.
Titolo abbreviato: IEEE trans. wirel. commun.
Titolo alternativo: Wireless communications
Numero volume della rivista12
Fascicolo della rivista3
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)-
Parole chiaveWireless networks, sensor networks, traffic relaying
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
    Progetti Europei-