A NEW DETECTION SCHEME FOR SPACE-TIME ORTHOGONAL CODE AND SPATIAL-MULTIPLEXING COMBINED SYSTEM UNDER SPATIAL CORRELATED CHANNEL

摘要

We introduce a new space-time orthogonal code and Spatial-Multiplexing combined system, which has the advantage of good fading resistance, simple decoding, and high data rates. At receiver side, a detection scheme called nulling-cancel is proposed. Simulation results show the new detection scheme makes the combined systems gain the larger diversity order than the SM system in spatial correlated channels. Furthermore, combined system with fewer receiver antennas can obtain better BER performance as compared with SM system because of the orthogonal of the code block.