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    Improved power-saving medium-access protocol for IEEE 802.11e QoS-enabled wireless networks

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    Authors
    Safdar, Ghazanfar Ali
    Scanlon, W.G.
    Issue Date
    2007
    Subjects
    access protocols
    discrete event simulation
    wireless LAN
    
    Metadata
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    Abstract
    The performance of a new pointer-based medium-access control protocol that was designed to significantly improve the energy efficiency of user terminals in quality-of-service-enabled wireless local area networks was analysed. The new protocol, pointer- controlled slot allocation and resynchronisation protocol (PCSARe), is based on the hybrid coordination function-controlled channel access mode of the IEEE 802.11e standard. PCSARe reduces energy consumption by removing the need for power-saving stations to remain awake for channel listening. Discrete event network simulations were performed to compare the performance of PCSARe with the non-automatic power save delivery (APSD) and scheduled-APSD power- saving modes of IEEE 802.11e. The simulation results show a demonstrable improvement in energy efficiency without significant reduction in performance when using PCSARe.
    Citation
    Safdar, G.A. and Scanlon, W.G. (2007) 'Improved power-saving medium-access protocol for IEEE 802.11e QoS-enabled wireless networks' IET Communications, 1(4), pp. 718-725.
    Publisher
    IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
    Journal
    IET Communications
    URI
    http://hdl.handle.net/10547/288624
    DOI
    10.1049/iet-com:20050429
    Additional Links
    http://digital-library.theiet.org/content/journals/10.1049/iet-com_20050429
    Type
    Article
    Language
    en
    ISSN
    17518628
    ae974a485f413a2113503eed53cd6c53
    10.1049/iet-com:20050429
    Scopus Count
    Collections
    Centre for Wireless Research (CWR)

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