Measuring the reliability of 802.11 WiFi networks [forthcoming]

MURRAY, D., LEE, K., KOZINIEC, T. and DIXON, M., 2015. Measuring the reliability of 802.11 WiFi networks [forthcoming]. In: Sixth IEEE International Conference on Internet Technologies & Applications, Wrexham, North Wales, September 2015. Los Alamitos, California: IEEE Computer Society, pp. 231-236.

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Abstract

Over half of the transmission time in WiFi networks is dedicated to ensuring that errors are corrected or detected. Despite these mechanisms, many studies have concluded that frame error rates vary. An increased understanding of why frames are lost is a pragmatic approach to improving real world 802.11 throughput. The potential beneficiaries of this research, include rate control algorithms, Modulation and Coding Schemes, simulation models, frame size selection and 802.11 configuration guidelines. This paper presents a measurement study of the factors which correlate with packet loss in 802.11 WiFi. Both passive and active approaches were used to investigate how the frame size, modulation and coding scheme and airtime effect the loss rate. Overall, packet errors were high, but the size of frames were not a major determinant of the loss rate. The loss rate decreased with the airtime but at substantially lower rates than those suggested in simple packet error models. Future work will further try to isolate and investigate specific errors, such as head on collisions in the preamble.

Item Type: Chapter in book
Creators: Murray, D., Lee, K., Koziniec, T. and Dixon, M.
Publisher: IEEE Computer Society
Place of Publication: Los Alamitos, California
Date: 2015
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 10:05
Last Modified: 19 Oct 2015 14:27
URI: http://irep.ntu.ac.uk/id/eprint/7452

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