A Rate $$\text{ M }_{\mathrm{T}}$$ Full Diversity STF Block Coded $$4\times 4$$ MIMO-OFDM System with Reduced Complexity

QOSTBC coded MIMO system with reduced complexity and optimised decoding for rank deficient channels

“…In such cases the sphere decoding [10–12] is one of the best ways to achieve an optimum ML solution. A large number of approaches [13–17] exist in the literature to reduce complexity of the sphere decoder, but most of them consider the number of transmitting antennas ( M Tx ) equal to or less than the number of receive antennas ( M Rx ). In a practical scenario, the mobile stations have lesser number of antennas compared to the base station due to lower dimensions.…”