Non-Coherent MIMO Scheme Based on OFDM-MFSK.

We propose a non-coherent transmission system based on orthogonal frequency division multiplexing (OFDM) for use in low-power applications. The proposed system uses M-ary frequency shift keying (MFSK) and employs two transmitting and two receiving antennas, with encoding performed across the space, frequency and time domains. For the resulting scheme, we develop a novel optimal non-coherent detect...