In this letter, we investigated the downlink transmission problem of a cognitive radio network (CRN) equipped with novel transmissive reconfigurable intelligent surface (TRIS) transmitter. order to achieve low power consumption and high-rate multi-streams communication, time-modulated arrays (TMA) is implemented users access using rate splitting multiple (RSMA). With such framework, multi-objec...

In this letter, we investigate an outdoor and indoor wireless communication network with the assistance of a relay-aided double-sided reconfigurable intelligent surface (RIS). A scheduling problem is considered at access point (AP) to minimize sum age information (AoI). To serve users further enhance link quality, RIS relay utilized. Since formulated non-convex highly-coupled variables, success...

This paper investigates the robust beamforming design in a secrecy multiple-input single-output (MISO) network aided by intelligent reflecting surface (IRS) with simultaneous wireless information and power transfer (SWIPT). Specifically, considering that energy receivers (ERs) are potential eavesdroppers (Eves) imperfect channel state (CSI) of direct cascaded channels can be obtained, we invest...

In this correspondence, transmit precoders and their power allocation coefficients are designed jointly for a downlink non-orthogonal multiple access (NOMA) wireless communication system. The objective is to provide max-min fairness (MMF) among the strongest users in each group, while maintaining minimum target rates all other users. proposed solutions respectively based on semi-definite relaxa...

In this letter, we investigate a UAV-enabled communication system, where UAV is deployed to communicate with the ground node (GN) in presence of multiple jammers. We aim maximize energy efficiency (EE) by optimizing its trajectory, subject UAV's mobility constraints. However, formulated problem difficult solve due non-convex and fractional form objective function. Thus, propose an iterative alg...

As a wide class of resource management problems in wireless communications are nonconvex and even NP-hard in many cases, finding globally optimal solutions to these problems is of little practical interest. Towards more pragmatic approaches, there is a rich literature on iterative methods aiming at finding a solution satisfying necessary optimality conditions to these problems. These approaches...

This paper studies unmanned aerial vehicle (UAV) aided wireless communication systems where a UAV supports uplink communications of multiple ground nodes (GNs) while flying over the area of the interest. In this system, the propulsion energy consumption at the UAV is taken into account so that the UAV’s velocity and acceleration should not exceed a certain threshold. We formulate the minimum av...

Mobile cloud computing (MCC) is a new technology that has been developed to overcome the restrictions of smart mobile devices (e.g. battery, processing power, storage capacity, etc.) to send a part of the program (with complex computing) to the cloud server (CS). In this paper, we study a multi-cell with multi-input and multi-output (MIMO) system in which the cell-interior users request service...

In this work, the integration of multi-access edge computing (MEC) with wireless power transfer (WPT) and slotted-ALOHA (SA) is investigated. All aforementioned technologies are considered key enablers for future Internet Things networks, therefore, their interaction great significance. To that end, an energy efficient medium access protocol designed, where each powered device (WPD) harvests in...

We propose and analyze secret key generation using intelligent reflecting surface (IRS) assisted wireless communication networks. To this end, we first formulate the minimum achievable capacity for an IRS acting as a passive beamformer in presence of multiple eavesdroppers. Next, develop optimization framework coefficients based on lower bound. derive tractable efficient solution, design semide...