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Method of Systematic Construction of Space-Time Constellations, System and Method of Transmitting Space-Time Constellations
Method of Systematic Construction of Space-Time Constellations, System and Method of Transmitting Space-Time Constellations
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机译:时空星座的系统构建方法,传输时空星座的系统和方法
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摘要
Space-time code, and methods for constructing space-time codes are provided. The space-time coder performs a respective linear transformation on each of P sets of K modulated symbols of a modulated symbol stream to produce P sets of T linearly transformed symbols, applies a respective phase rotation to each set of T linearly transformed symbols to produce a respective set of T phase rotated symbols, and performs a threading operation on the sets of T phase rotated symbols to produce P threaded sequences that define M output sequences; the threading operation being such that each threaded sequence is an allocation of output sequences over time of a respective one of the P sets of T phase rotated symbols in which all of the output sequences are used by each threaded sequence; during each of T symbol periods, a respective one of the P threaded sequences includes a symbol from one of the P sets of phase rotated symbols; and at least one symbol from each set of phase rotated symbols appears in each output sequence; where M=2, 2=P=M, and T=M and M=K.
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