Routing Function
Transition probability (mdf):
pijk (t) = [Tijk(t) ]-a[C(i,j)]-b / Nk(i,j,t)
Nk (i,j,t) = Sj in (S-Tabu(k)) [Tijk(t) ]-a[C(i,j)]-b
a, b are control parameters that determine the sensitivity of the algorithm to link cost and pheromone.
C(i,j) a function that depends upon the type of traffic, the length and utilization of the link.