A key challenge of future mobile communication research is to strike an attractive
compromise between wireless network's area spectral efficiency and energy efficiency. This …

This paper proposes a new multiple-input-multiple-output (MIMO) technique called
quadrature spatial modulation (QSM). QSM enhances the overall throughput of conventional …

Quadrature spatial modulation (QSM) is a recent digital multiple-input multiple-output
(MIMO) transmission technique. Combined with cooperative relaying, QSM improves the …

This paper presents a novel generalized quadrature spatial modulation (GQSM)
transmission scheme using antenna grouping. The proposed GQSM scheme combines …

In this paper, a new multiple‐input multiple‐output transmission technique called quadrature
spatial modulation (QSM) is proposed and analyzed in the presence of imperfect channel …

Quadrature spatial modulation (QSM) is a new multiple-input multiple-output (MIMO)
transmission technique that enhances the overall spectral efficiency of conventional spatial …

This paper proposes a novel quadrature space-frequency index modulation (QSF-IM)
scheme as a promising energy-efficient radio-access technology for the fifth generation (5G) …

Novel performance analysis of the recently proposed signed quadrature spatial modulation
(SQSM) multiple-input–multiple-output (MIMO) system is presented in this paper. This study …

In this paper, a generalized MIMO Spatial Multiplexing (SMX) system with a new Index
Modulation (IM) domain called filter IM domain is proposed. This filter domain generalizes …

Quadrature spatial modulation (QSM) in cognitive radio (CR) is a new spectral and energy
efficient multiple-input multiple-output (MIMO) transmission paradigm. In QSM, the spatial …