Communication system's performance is sensitive to bandwidth, power, cost etc. There have
been various solutions to improve the performance, out of them, one of the fundamental …

The massive connectivity is among other unprecedented requirements which are expected
to be satisfied in order to follow the perpetual increase of connected devices in the era of …

The intelligent information society, which is highly digitized, intelligence inspired, and
globally data driven, will be deployed in the next decade. The next 6G wireless …

In multiple-input multiple-output (MIMO) systems, multiple radio frequency (RF) chains are
usually required to simultaneously transmit multiple data streams. As a special MIMO …

In this paper, we propose a novel reconfigurable intelligent surface (RIS)-based modulation
scheme, named RIS-aided receive quadrature reflecting modulation (RIS-RQRM), by …

Reconfigurable intelligent surface (RIS)-assisted transmission and space shift keying (SSK)
appear as promising candidates for future energy-efficient wireless systems. In this article …

Reflection modulation based on reconfigurable intelligent surface (RIS) is considered to be
a promising information transfer mechanism, which does not require any additional radio …

Reconfigurable intelligent surface (RIS) is a key enabler for future paradigm-shifting
communication technologies. In a cellular network, an RIS can be used to simultaneously …

Orthogonal frequency division multiplexing with subcarrier number modulation (OFDM-
SNM) has been recently proposed to improve the spectral efficiency (SE) of the traditional …

This article introduces a novel frequency-shift chirp spread spectrum (FSCSS) system with
index modulation (IM). By using combinations of orthogonal chirp signals for message …