The commercial fifth-generation (5G) wireless communications networks have already been
deployed with the aim of providing high data rates. However, the rapid growth in the number …

In fifth generation wireless networks, the escalating teletraffic and energy consumption has
necessitated the development of green communication techniques in order to further …

Reconfigurable intelligent surfaces (RISs) are an emerging transmission technology for
application to wireless communications. RISs can be realized in different ways, which …

The future of mobile communications looks exciting with the potential new use cases and
challenging requirements of future 6th generation (6G) and beyond wireless networks. Since …

Spatial modulation (SM) is an innovative and promising digital modulation technology that
strikes an appealing tradeoff between spectral efficiency and energy efficiency with a simple …

What is index modulation (IM)? This is an interesting question that we have started to hear
more and more frequently over the past few years. The aim of this paper is to answer this …

Intelligent reflecting surfaces (IRSs), which are capable of adjusting radio propagation
conditions by controlling the phase shifts of the waves that impinge on the surface, have …

The ambitious goals set for 5G wireless networks, which are expected to be introduced
around 2020, require dramatic changes in the design of different layers for next generation …

Orthogonal frequency division multiplexing with index modulation (OFDM-IM) performs
transmission by considering two modes over OFDM subcarriers, which are the null and the …

Novel communication technology based on large intelligent surface (LIS) has arisen
recently, with the aim to enhance the signal quality at the receiver. In this paper, a practical …