1. A method of decoding a signal vector in a multiple-input multiple-output transmission scheme, comprising: receiving a first and a second signal vectors corresponding to a common transmit signal vector; preprocessing a first channel response matrix associates with the first signal vector; processing the first signal vector using the preprocessed first channel response matrix; concatenating the processed first signal vector and the second signal vector to form a combined signal vector; processing the combined signal vector; and decoding, using decoding circuitry, the processed combined signal vector.