Frames in outdoor 802.11 WLANs provide a hybrid binary-symmetric/packet-erasure channel

Chen, Xiaomin and Leith, Douglas (2015) Frames in outdoor 802.11 WLANs provide a hybrid binary-symmetric/packet-erasure channel. In: ICC 2015 - IEEE International Conference on Communications, 8th - 12th June 2015, London, UK.

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Official URL: http://dx.doi.org/10.1109/ICC.2015.7249299

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: Conference or Workshop Item (Paper)
Uncontrolled Keywords: IEEE 802.11 Standard, Channel capacity, Wireless communication, Quality of service, Reliability, Measurement uncertainty, Receivers
Subjects: G400 Computer Science
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 05 Jul 2018 14:00
Last Modified: 11 Oct 2019 20:00
URI: http://nrl.northumbria.ac.uk/id/eprint/34831

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