Hi all, There is a new paper comparing the relative performance of babeld, olsrd, and bmx6:
Neumann, Axel, Ester López, and Leandro Navarro. "Evaluation of mesh
routing protocols for wireless community networks." Computer Networks
93 (2015): 308-323.
Compared to the 2013 paper, it's much more torough, and used a testbed
while the 2013 paper was only based on emulation (this should make
Matthieu happy!).
The conclusion is the following:
Babel is the most lightweight protocol with the least memory, CPU, and
control-traffic requirements as long as it is used in networks with
stable links and low node densities.
However, if the protocol is used in large or dense wireless
deployments with frequent link changes due to dynamic interference or
nodes leaving or joining the network, then its reactive mechanisms to
encounter topology changes by sending additional routing updates and
route request messages turn into massive control-traffic and
processing overhead. In such scenarios, OLSR and BMX6, with their
strictly constant rate for sending topology and routing update
messages, outperform Babel in terms of overhead, stability, and even
self-healing capabilities.
The paper is available here:
http://www.sciencedirect.com/science/article/pii/S1389128615002522
(paywalled)
http://www2.ic.uff.br/~celio/classes/cmovel/slides/community-mesh-2015.pdf
http://people.ac.upc.edu/leandro/pubs/eomrpfwcn.pdf (open-access preprint)
http://dsg.ac.upc.edu/eval-mesh-routing-wcn (more information, data,
scripts)
Baptiste
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