Index modulation (IM) provides a novel way for the transmission of additional data bits via
the indices of the available transmit entities compared with classical communication …

Quadrature spatial modulation (QSM) is recently proposed to increase the spectral efficiency
(SE) of SM, which extends the transmitted symbols into in-phase and quadrature domains. In …

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 …

In this paper, we study an intelligent secure communication scheme for cognitive networks
with multiple primary transmit power, where a secondary Alice transmits its secrecy data to a …

In this paper, spectral efficiency of free-space optical (FSO) communication is enhanced by
the utilization of advanced schemes of optical spatial modulation (OSM). Optical generalized …

A simplified rectangular differential spatial modulation (S-RDSM) scheme is conceived for
massive multiple-input multiple-output (MIMO) systems dispensing with the channel state …

ABSTRACT A novel modulation technique termed as orthogonal frequency division
multiplexing with subcarrier power modulation (OFDM-SPM) has been proposed for …

In this article, we propose a limited feedback-based space-shift keying (SSK) modulation
scheme where transmitter (Tx) obtains partial channel state information (CSI) via a feedback …

Amplify‐and‐forward cooperative underwater optical wireless communication employing
optical improved quadrature spatial modulation (OIQSM) is proposed in this study. It uses …

The limitation of the available channel bandwidth and availability of a sustainable energy
source for battery feed sensor nodes are the main challenges in the underwater acoustic …