On the Performance of Hybrid Wireless/Wired Mesh Networks
Authors: Max, Sebastian and Stibor, Lothar and Hiertz, Guido R. and Denteneer, Dee
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: 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
Abstract 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.
Author Keywords
Wireless Mesh Network, Hybrid Network, Capacity Analysis
Download Bibtex
@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 = {https://www.comnets.rwth-aachen.de}
}