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On the Performance of Hybrid Wireless/Wired Mesh Networks
Max, Sebastian and Stibor, Lothar and Hiertz, Guido R. and Denteneer, Dee
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University Kontakt: Sebastian Max
In Proceedings of the 3rd IEEE International Conference on Wireless and Mobile Computing, Networking and Communications WiMob 2007, p. 8, White Plains, New York, USA,IEEE Computer Society, 2007.
Publication Date: Oct, 2007
On page(s):8
ISBN: 0-7695-2889-9
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Wireless Mesh Networks (WMNs) transparently ex-
tend the coverage of a portal via Mesh Points (MPs)
which relay data over multiple hops to the associated
stations. While this concept lowers costly wire installa-
tions, capacity is reduced by the multiple transmissions.
Therefore, multiple portals are needed to limit the
route length, resulting in a wireless network supported
by a wired backbone. In this paper, we analyze how the
variation of the average ratio of MPs per portal effects
the network performance. To do so, a realistic system
model is defined which incorporates the typical char-
acteristics of a wireless link based on IEEE 802.11a.
Then, we use an analytical framework which allows to
compute the capacity in an arbitrary network topology
under the conditions of the system model.
The comparison of the average system capacity with
different ratios shows that the performance gain dimin-
ishes with increasing number of portals: While the step
from one to two portals doubles the capacity, there is
only a small difference between 1 and 0.5 MPs per por-
tal. Furthermore, a simple cost model provides insights
to the economical feasibility of WMNs: In the case that
an MP costs about 10% of a portal, the optimal ratio
is found to be around 5 MPs per portal.
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Wireless Mesh Network, Hybrid Network, Capacity Analysis
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On the Performance of Hybrid Wireless/Wired Mesh Networks  1,642 KB or here |
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@INPROCEEDINGS{smxWIMOB07PerformanceHybrid,
AUTHOR = {Max, S. and Stibor, L. and Hiertz, G. and Denteneer, D.},
TITLE = {On the Performance of Hybrid Wireless/Wired Mesh Networks},
YEAR = {2007},
MONTH = {Oct},
PAGES = {8},
PUBLISHER = {IEEE Computer Society},
ADDRESS = {White Plains, New York, USA},
BOOKTITLE = {Proceedings of the 3rd IEEE International Conference on Wireless and
Mobile Computing, Networking and Communications WiMob 2007},
AFFILIATION = {Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {0-7695-2889-9},
KEYWORDS = {Wireless Mesh Network, Hybrid Network, Capacity Analysis},
LOCATION = {Los Alamos, USA},
URL = {http://www.comnets.rwth-aachen.de}
}
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| | Letzte Änderung: 22.01.2009 15.13 | |
