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      Signed Quadrature Spatial Modulation for MIMO Systems

      Abu-Hudrouss, Ammar M.; El Astal, M.-T.; Al Habbash, Alaa; Aissa, Sonia (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Quadrature spatial modulation (QSM) was recently proposed to increase the spectral efficiency of spatial modulation. In QSM, the real and imaginary parts of a symbol are transmitted independently from different antennas. ...
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      Super-orthogonal double space-time trellis code

      Tubail, Mohammed A.; Abu-Hudrouss, Ammar M.; El Astal, Mohammed (Elsevier BV, 2020)
      This study develops a new class of super-orthogonal trellis codes for four transmit antennas based on double space-time codes. The transmit antennas are divided into two groups, each having two transmit antennas. The ...