The 802.11g 11 Mb/s rate is more robust than 6 Mb/s


Huang, K.D. and Malone, D. and Duffy, Ken R. (2011) The 802.11g 11 Mb/s rate is more robust than 6 Mb/s. IEEE Transactions on Wireless Communications, 10 (4). pp. 1015-1020. ISSN 1536-1276

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Abstract

The robustness to noise of the 802.11b/g 5.5 Mb/s and 11 Mb/s rates must be investigated experimentally as they cannot be predicted theoretically. In this paper we report on detailed outdoor and indoor measurements that lead us to the surprising conclusion that the 11 Mb/s 802.11g rate experiences fewer packet losses than the 6 Mb/s 802.11g rate at any given (symbol) SNR. This occurs due to the combination of modulation and physical layer coding schemes used by these rates and has serious implications for rate control algorithms. The practical implications of this, factoring in the interaction between packet loss and 802.11 MAC retries, is that 6 Mb/s is effectively redundant as a packet transmission rate if the 11 Mb/s rate is available.

Item Type: Article
Additional Information: This is the postprint version of the published article, which is available at 10.1109/TWC.2011.030311.100402 . SFI grant RFP-07-ENEF530 and 07/SK/I1216a. Thanks to Ian Dangerfield, Xiaomin Chen and Yi-Chao Chen for assistance with measurements.
Keywords: WLAN; IEEE 802.11; Packet Loss Rate;
Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID: 6007
Identification Number: 10.1109/TWC.2011.030311.100402
Depositing User: Dr. David Malone
Date Deposited: 08 Apr 2015 15:51
Journal or Publication Title: IEEE Transactions on Wireless Communications
Publisher: IEEE
Refereed: Yes
Funders: Science Foundation Ireland (SFI)
URI:

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