2017/09/14 by Merve Yüzgeçcioğlu, Eduard A. Jorswieck, Yüzgeçcioglu, Merve +1
Engineering · #Advanced Antenna and Metasurface Technologies #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #Information Theory (cs.IT) #Millimeter-Wave Propagation and Modeling
paper · pdf · doi:10.48550/arxiv.1709.04826
openalex publication_date 2017/09/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The cost of radio frequency (RF) chains is the biggest drawback of massive\nMIMO millimeter wave networks. By employing spatial modulation (SM), it is\npossible to implement lower number of RF chains than transmit antennas but\nstill achieve high spectral efficiency. In this work, we propose a system model\nof the SM scheme together with hybrid beamforming at the transmitter and\ndigital combining at the receiver. In the proposed model, spatially-modulated\nbits are mapped onto indices of antenna arrays. It is shown that the proposed\nmodel achieves approximately 5dB gain over classical multi-user SM scheme with\nonly 8 transmit antennas at each antenna array. This gain can be improved\nfurther by increasing the number of transmit antennas at each array without\nincreasing the number of RF chains.\n