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Table 2 Comparison of condition numbers: row balancing schemes, left-right swapping, and combination of both

From: A robust LU polynomial matrix decomposition for spatial multiplexing

MIMO Post-filter condition number
  S(z) V(z)−1 Q(z)
4×4 34 23 16
5×5 145 86 46
6×6 269 194 96
7×7 915 684 257
8×8 2908 3339 1002
9×9 4028 2863 1187
10×10 21,983 17,495 6399
11×11 30,620 21,384 10,075
13×13 101,547 59,609 40,134