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  • AUT Faculties
  • Faculty of Design and Creative Technologies (Te Ara Auaha)
  • School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau
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The impact of transmission overheads on IEEE 802.11 throughput: analysis and simulation

Sarkar, NI; Sarkar, NI
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http://hdl.handle.net/10292/4150
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Abstract
While various factors affecting the performance of a typical IEEE 802.11 DCF (“DCF”) medium access control (MAC) protocol, transmission overhead is one of the main causes of DCF MAC inefficiency. This paper provides an analysis of DCF overhead to show that the network throughput degrades significantly due to its high transmission overhead for a singleuser scenario. Simulation modeling is used to demonstrate the performance degradation of DCF for a multi-user network scenario. To reduce DCF’s high transmission overheads and to improve the system performance, this paper introduces a simple packet scheduling mechanism called buffer unit multiple access (BUMA). The BUMA improves the system performance because it requires less overhead to send the same amount of payload than the DCF. Results obtained show that if BUMA is used in place of DCF, the network performance is improved significantly especially under medium-to-high loads.
Keywords
Distributed coordinated function (DCF); IEEE 802.11; Transmission overhead; Throughput
Date
March 2011
Source
Cyber Journals: Multidisciplinary Journals in Science and Technology. Special Issue, Journal of Selected Areas in Telecommunications (JSAT), vol.2(3), pp.10 - 17 (8)
Item Type
Journal Article
Publisher
Cyber Journal
Publisher's Version
http://www.cyberjournals.com/Mar2011.html
Rights Statement
Copyright © 2011 Cyber Journals. All rights reserved. No prior permission is required to use the information from this website, however proper citation is required.

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