Physical layer security (PLS) has emerged as a new concept and powerful alternative that
can complement and may even replace encryption-based approaches, which entail many …

Today's heterogeneous networks comprised of mostly macrocells and indoor small cells will
not be able to meet the upcoming traffic demands. Indeed, it is forecasted that at least a 100 …

We consider a multi-user Multiple-Input Single-Output (MISO) communication system
comprising of a multiantenna base station communicating in the downlink simultaneously …

This paper presents our investigation of non-orthogonal multiple access (NOMA) as a novel
and promising power-domain user multiplexing scheme for future radio access. Based on …

This paper presents a non-orthogonal multiple access (NOMA) concept for cellular future
radio access (FRA) towards the 2020s information society. Different from the current LTE …

We propose joint spatial division and multiplexing (JSDM), an approach to multiuser MIMO
downlink that exploits the structure of the correlation of the channel vectors in order to allow …

This book focuses on LTE with full updates including LTE-Advanced (Release-11) to provide
a complete picture of the LTE system. Detailed explanations are given for the latest LTE …

As a promising downlink multiple access scheme for future radio access (FRA), this paper
discusses the concept and practical considerations of non-orthogonal multiple access …

This paper addresses the problem of channel estimation in multi-cell interference-limited
cellular networks. We consider systems employing multiple antennas and are interested in …

In this letter, we consider a network assisted by multiple reconfigurable intelligent surfaces
(RISs). Assuming that the RIS with the highest instantaneous end-to-end signal-to-noise …