OFDM/Layered STC

OFDM (Orthogonal Frequency Division Multiplexing)

OFDM is kind of multicarrier modulations with orthogonally among subcarriers. Merits of OFDM are robustness against the frequency selective fading and high frequency efficiency and so on.

Layered STC (Space-Time Coding)

The Layered Space-Time Processing approach to STC (Space-Time Coding) was first introduced by Lucent’s Bell Labs, with their BLAST family of STC structures.