NDLI: A 5 GHz WLAN MAC performance comparison based on physical layer measurements

Content Provider	IEEE Xplore Digital Library
Author	Rollet, R. Mangin, C.
Copyright Year	2004
Description	Author affiliation: TCL, Mitsubishi Electr. ITE, Rennes, France (Rollet, R.; Mangin, C.)
Abstract	This paper presents a MAC performance comparison between IEEE 802.11a, 802.11e and HiperLAN/2 WLAN standards. These standards share the same OFDM physical layer at 5 GHz but offer very different medium access and retransmission mechanisms. In addition, the radio channel is very difficult to model and to predict over a long period. Therefore, some simulations of the different MAC and error control layers have been conducted in a single user environment using a binary error pattern captured with an actual OFDM modem instead of an error model. These simulations integrate a physical layer rate adaptation mechanism common to all protocols. The performance is evaluated by assessing the maximum total goodput provided by the systems in a typical radio environment. Transfer delay is also examined according to the traffic load and the channel noise. Finally, an analysis of the results establishes the conditions in which the mechanisms specific to each protocol become profitable.
Starting Page	2594
Ending Page	2598
File Size	372198
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1286014
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Physical layer Error correction OFDM Protocols Predictive models Modems Delay Telecommunication traffic Working environment noise
Content Type	Text
Resource Type	Article

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