The design of efficient rateless coding schemes for multicast applications in wireless environments is investigated. First, the digital fountain paradigm for non-ergodic channels is introduced by making use of the dynamic-decoding nature of rateless codes that allows them to adapt opportunistically the code rate to the channel realization (assumed unknown at the transmitter). The information th...

In this work, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR) and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. Assuming that the information signal to the desired IR may be eavesdropped by ERs...

In this paper, an intelligent reflecting surface (IRS) assisted spectrum sharing underlay cognitive radio (CR) wiretap channel (WTC) is studied, and we aim at enhancing the secrecy rate of secondary user in subject to total power constraint transmitter (ST), interference (IPC) primary receiver (PR) as well unit modulus IRS. Due extra IPC eavesdropper (Eve) are considered, all existing solutions...

Over-the-air computation (AirComp) enables fast wireless data aggregation at the receiver through concurrent transmission by sensors in application of Internet-of-Things (IoT). To further improve performance AirComp under unfavorable propagation channel conditions, we consider problem distortion minimization a reconfigurable intelligent surface (RIS)-aided system. In particular, take into accou...

This paper considers the problem of symbol detection in massive multiple-input multiple-output (MIMO) wireless communication systems. We consider hard-thresholding preceded by two variants regularized least squares (RLS) decoder; namely unconstrained RLS and with a box constraint, which is called Box-RLS. For all schemes, we focus on evaluation mean squared error (MSE) probability (SEP) for M-a...

Distributed parameter detection is conceived for massive multiple-input multiple-output (MIMO) wireless sensor networks (WSNs), where multiple sensors collaborate to detect the presence/ absence of a spatially correlated parameter. Neyman-Pearson (NP) and generalized likelihood ratio test (GLRT)-based detectors are developed at fusion center (FC) known unknown scenarios, respectively. More expl...