From: Waterwall: a cooperative, distributed firewall for wireless mesh networks
Notation | Definition |
---|---|
N | The set of nodes in the network |
sp(i,j) | A set of nodes that form the shortest path between node i |
and node j | |
sp l (i,j) | The length of the shortest path sp(i,j) |
δ | A parameter that determines the maximum size of a rule-set |
enforced on a single node | |
m(i) | The average distance of node i from all the other nodes in N |
r | The average size of a rule-set used by a node in N |
R | The global rule-set, i.e., the union of all rule-sets |
t(i) | The average sp l (i,j) computed on node i for every packet |
with source k and destination j and for every (k,j) for which | |
i∈sp(k,j) (see Equation 2) |