The combination of non-orthogonal multiple access (NOMA) and multiple-input multiple-
output (MIMO) signaling is capable of providing significantly improved spectral efficiency …

As a recently proposed idea for the future wireless systems, intelligent reflecting surface
(IRS) can assist communications between entities which do not have high-quality direct …

Reconfigurable intelligent surface (RIS) is capable of improving the wireless system
performance by steering the reflected signal in the desired direction. One of the major …

Sixth generation (6G) mobile networks may include new passive technologies, such as
ambient backscatter communication or the use of reconfigurable intelligent surfaces, to …

The wireless revolution has already started with the first official 3GPP release of 5G wireless
networks, which is expected to support a plethora of applications. Despite the development …

Higher spectral and energy efficiencies are the envisioned defining characteristics of high
data-rate sixth-generation (6G) wireless networks. One of the enabling technologies to meet …

Index modulation multiple access (IM-MA) is recently proposed to exploit the IM concept to
the uplink multiple access system, where multiple users transmit their own signals via the …

In this paper, we provide a comprehensive review of diverse index modulation (IM)
architectures that operate in the space, time, and frequency domains, as well as their related …

In this paper, we investigate the uplink communication of a reconfigurable intelligent surface
(RIS) assisted system, in which an user equipment (UE) with single radio frequency (RF) …

In this article, a high data rate and energy-efficient multiple-input multiple-output
transmission scheme is considered by combining two popular and rational modulation …