algortihm 1 basic link selection
input: txm matrix M, integer k
output: MP =(M1 M2) where M1 is txk
1: compute the SVD of M: M= Udelta V T;
2: Apply QR with column pivoting to first k
column
V(:, 1: k)T p =QR
algorithm 2 SDN Router Placement
Input: Eb: the set of basic links;
output: C: the set of SDN routers;
1: C=0;
2: while Eb not equal theta do
for legacy router i with yi= = do
compute Ei Eb; Ei is the set of basic cover the legacy router
i;
how to design this algorithm using python