Index modulation (IM) reduces the power consumption and hardware cost of the multiple-
input multiple-output (MIMO) system by activating part of the antennas for data transmission …

Transmission through reconfigurable intelligent surfaces (RISs), which control the
reflection/scattering characteristics of incident waves in a deliberate manner to enhance the …

In the last two decades, the wireless communications field has seen many radical
disruptions in improving technologies. It is to provide the highest quality of service to the end …

In this paper, a new index modulation technique, referred to as the multi-mode generalized
space-time index modulation (MM-GSTIM) is presented. MM-GSTIM is a high-rate index …

Determining the capacity of a modulation scheme is a fundamental topic of interest. Index
modulations (IM), such as spatial modulation (SMod), polarized modulation (PMod), or …

Radiocommunication systems have evolved significantly in recent years in order to meet
present and future demands. Historically, time, frequency and more recently, spatial …

In this paper, the uplink transmission scheme combining spatial index modulation with cell-
free massive multi-input multi-output (MIMO) system is studied. The access point (AP) and …

Advanced modulation techniques play a prominent role in the overall design of next
generation multiple access (NGMA), which can provide good solutions to the explosive data …

Future generations of wireless communication systems are expected to serve a large
number of users with different quality of service requirements. Given the limited spectrum …

In index modulation schemes, information bits are conveyed through indexing of
transmission entities, such as antennas, subcarriers, times slots, precoders, subarrays, and …