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    Frames in Outdoor 802.11 WLANs Provide a Hybrid Binary-Symmetric/Packet-Erasure Channel


    Chen, Xiaomin and Leith, Douglas J. (2014) Frames in Outdoor 802.11 WLANs Provide a Hybrid Binary-Symmetric/Packet-Erasure Channel. Technical Report. arXiv.org.

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    Abstract

    Corrupted frames with CRC errors potentially provide a useful channel through which information can be transmitted. Using measurements taken in an outdoor environment, it is demonstrated that for 802.11 wireless links the channel provided by corrupted frames alone (i.e. ignoring frames with PHY errors and frames received correctly) can be accurately modelled as a binary symmetric channel (BSC) provided appropriate pre- and post- processing is carried out. Also, the channel provided by corrupted frames and other frames combined can be accurately modelled as a hybrid binary-symmetric/packet-erasure channel. Importantly, it is found that this hybrid channel offers capacity increases of more than 100% compared to a conventional packet erasure channel over a wide range of RSSIs. This indicates that the potential exists for significant network throughput gains if the information contained in 802.11 corrupted packets is exploited.

    Item Type: Monograph (Technical Report)
    Additional Information: Hamilton Institute Technical Report available at http://arxiv.org/abs/1209.4504
    Keywords: Frames; Outdoor 802.11 WLANs; Hybrid Binary-Symmetric/Packet-Erasure Channel;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 5952
    Identification Number: arXiv:1209.4504
    Depositing User: Professsor Douglas Leith
    Date Deposited: 11 Mar 2015 17:01
    Publisher: arXiv.org
    URI:

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