Cooperative WLAN Protocols for Multimedia Communication

Series in Wireless Communications, Bd. 13

Azadeh Ettefagh

ISBN 978-3-8325-2774-7
226 Seiten, Erscheinungsjahr: 2011
Preis: 37.50 €
Cooperative WLAN Protocols for Multimedia Communication
The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, it can support only MIMO point-to-point links. On the other hand, it is known that multiuser MIMO techniques can significantly increase the spectral efficiency of networks. In this thesis, to realise MIMO spatial multiplexing gain in networks with single-antenna stations and to enhance network performance, cooperative protocols are considered with respect to both PHY and MAC layers.

In order to utilise cooperative signalling in WLANs, the MAC protocol has to be modified. The existing CSMA/CA-based MAC avoids any interference and supports only point-to-point links. To enhance IEEE 802.11n system in a way that multiple users can transmit simultaneously, a novel cluster-based CSMA/CA has been proposed in this work. Our study has shown that the CB-CSMA/CA can significantly improve throughput and reduce delay in different types of infrastructure or ad hoc networks with single-hop or two-hop links. Furthermore, we have shown that throughput of CB-CSMA/CA can further be improved by taking cross-layer parameters into account, when forming the clusters or defining the backoff models.

Wollen auch Sie Ihre Dissertation veröffentlichen?

cover cover cover cover cover cover cover cover cover
  • WLAN
  • Medium Access Control Protocols
  • Cooperative Protocols
  • Relaying
  • Multiuser Transmissions


37.50 €
auf Lager
Versandkostenfrei innerhalb Deutschlands

35.50 €
47.50 €
51.50 €

(D) = innerhalb Deutschlands
(W) = außerhalb Deutschlands

*Sie können das eBook (PDF) entweder einzeln herunterladen oder in Kombination mit dem gedruckten Buch (eBundle) erwerben. Der Erwerb beider Optionen wird über PayPal abgerechnet - zur Nutzung muss aber kein PayPal-Account angelegt werden. Mit dem Erwerb des eBooks bzw. eBundles akzeptieren Sie unsere Lizenzbedingungen für eBooks.

Bei Interesse an Multiuser- oder Campus-Lizenzen (MyLibrary) füllen Sie bitte das Formular aus oder schreiben Sie eine email an