TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Freudenberger, Jürgen A1 - Rohweder, Daniel A1 - Shavgulidze, Sergo T1 - Generalized Multistream Spatial Modulation With Signal Constellations Based on Hurwitz Integers and Low-Complexity Detection JF - IEEE Wireless Communication Letters N2 - This letter proposes two contributions to improve the performance of transmission with generalized multistream spatial modulation (SM). In particular, a modified suboptimal detection algorithm based on the Gaussian approximation method is proposed. The proposed modifications reduce the complexity of the Gaussian approximation method and improve the performance for high signal-to-noise ratios. Furthermore, this letter introduces signal constellations based on Hurwitz integers, i.e., a 4-D lattice. Simulation results demonstrate that these signal constellations are beneficial for generalized SM with two active antennas. KW - Antenna arrays KW - Spatial modulation KW - MIMO KW - Lattices KW - Signal detection Y1 - 2018 SN - 2162-2337 SS - 2162-2337 U6 - https://doi.org/10.1109/LWC.2017.2780092 DO - https://doi.org/10.1109/LWC.2017.2780092 N1 - Volltextzugriff für Angehörige der Hochschule Konstanz möglich VL - 7 IS - 3 SP - 412 EP - 415 ER -