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IEEE 802.11 Contention-Based Medium Access for Multiple Channels
Mangold, Stefan and Habetha, Jörg
Swisscom Innovations, Bern Kontakt: publications@comnets.rwth-aachen.de
In Proceedings of 11th European Wireless Conference 2005, Vol. 2, p.p. 522-526, Nicosia, Cyprus, 2005.
Publication Date: Apr, 2005
On page(s):522-526
ISBN: 3-8007-2886-9
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The IEEE 802.11medium access protocol is based on carrier sensing, and
contention, i.e., collision avoidance of frame transmissions from different
radio stations. This contention-based protocol is discussed in this paper
and extended for the usage in multiple parallel frequency channels, in which
a multi-channel station groups channels for increasing its own achievable
throughput. We discuss a capture effect that occurs if single-channel and
multi-channel stations operate in parallel. Methods to enable multi-channel
stations and single-channel stations to coexist by sending out redundant
preambles, frame headers, and control frames on each individual frequency
channel before the channels are grouped, are studied. Single-channel "legacy" stations operating in one of the grouped channels can then detect that the data frame that follows is not intended for them. We provide a
first analytical evaluation for the expected efficiency of the proposed
modifications.
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IEEE 802.11, Wireless Local Ar
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@INPROCEEDINGS{MangoldHabetha_EW2005,
AUTHOR = {Mangold, S. and Habetha, J.},
TITLE = {IEEE 802.11 Contention-Based Medium Access for Multiple Channels},
YEAR = {2005},
MONTH = {Apr},
VOLUME = {2},
PAGES = {522-526},
ADDRESS = {Nicosia, Cyprus},
BOOKTITLE = {Proceedings of 11th European Wireless Conference 2005},
AFFILIATION = {Swisscom Innovations, Bern},
ISBN = {3-8007-2886-9},
KEYWORDS = {IEEE 802.11, Wireless Local Ar},
LANGUAGE = {Englisch},
LOCATION = {Nicosia, Cyprus},
URL = {http://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {GG113, QK17}
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| | Letzte Änderung: 17.09.2008 11.46 | |
