How does modulation technique affect channel capacity?

Shannon's channel capacity formula does not consider modulation techniques. How then does LTE achieve high data rate using advanced modulation techniques?

P.S: I am novice in RF and signal processing.

$$C = B\,\textrm{log}_2(1 + SNR) = 20E6 \times \textrm{log}_2(1 + 10^\frac{20}{10}) = 133.2 MBit/sec.$$