Betweenness estimation in OLSR-based multi-hop networks for distributed filtering ?
Traditional firewalling on multi-hop networks has a critical impact on network resources. Centrality metrics can be used to identify a core of nodes able to enforce filtering/monitoring. OLSR routing information can be used to efficiently identify this core of nodes without overhead. We propose a method that scales on realistic network dimension and topologies. Enforcing firewalling only on this core reduces the impact and stops most unwanted traffic.
olsr multi-hop networks centrality shortest path betweenness distributed firewall multi-point relay