Spatial CCK Modulation and Iterative Detection Over Frequency-Selective Fading Channels

In this letter, we present a novel spatial modulation (SM) transmission with multiple antennas by applying non-orthogonal complementary code keying (CCK). We propose a high-performance turbo receiver for this CCK-SM signaling over frequency-selective fading channels. Compared with conventional SM, our proposed CCK-SM transceiver utilizes the advantages of CCK to achieve substantial coding gain without the cost of high complexity. Our novel receiver incorporates iterative block decision feedback equalization with a CCK soft decoder to achieve clear performance gain. Simulation test shows substantial performance gain by the proposed CCK-SM transceiver over the conventional SM.