Differential space time block codes using QAM constellations

  title={Differential space time block codes using QAM constellations},
  author={Chan-Soo Hwang and Seunghoon Nam and Jaehak Chung and Vahid Tarokh},
..lh.simrc~-We propose differential space time block codes (STBC) using quadrature amplitude modulation (QAM), which can iwt be utilized i n the conventional differential STBC. Since QAM constellarims have a larger minimum distance compared with phase shift keying (PSK), the proposed method has the advantage of SNR gain compared with conventional differential STBC. The Q A M signals are encoded i n a manner similar to that of conventional differential STBCs. To decode QAM signals, the rignxls… CONTINUE READING

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