Online optimization of 802.11 mesh networks

9 years 15 days ago
Online optimization of 802.11 mesh networks
802.11 wireless mesh networks are ubiquitous, but suffer from severe performance degradations due to poor synergy between the 802.11 CSMA MAC protocol and higher layers. Several solutions have been proposed that either involve significant modifications to the 802.11 MAC or legacy higher layer protocols, or rely on 802.11 MAC models seeded with off-line measurements performed during network downtime. We introduce a technique for online optimization of 802.11 wireless mesh networks using rate control at the network layer. The technique is based on a lightweight model that characterizes the feasible rates region of an operational 802.11 wireless mesh network. Unlike existing 802.11 modeling approaches, the parameters of this model can be estimated online, incur minimal overhead and can be realized using standard probing mechanisms at the network layer. Using analysis and extensive measurements over a wireless mesh network testbed, we validate the assumptions on which the model is built, ...
Theodoros Salonidis, Georgios Sotiropoulos, Roch G
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2009
Authors Theodoros Salonidis, Georgios Sotiropoulos, Roch Guérin, Ramesh Govindan
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