This article considers the problem of an unmanned aerial vehicle (UAV)-enabled cloud network under partial computation offloading scenario, where multiple UAV-mounted base stations are employed to serve a group remote Internet-of-Things ground-based smart devices (ISDs). The main objective this work is maximize energy efficiency by minimizing number needed drones while cost associated with serving ISDs some realistic quality service constraints. To that end, we aim jointly optimize 3-D UAV...

Motivated by the simplicity of energy detector and capability higher order fractional lower statistics in non-Gaussian signal processing, this paper proposes a new spectrum sensing method based on kernel theory, referred to as Kerenlized Energy Detector (KED), which exhibits moderate complexity, it is easy implement, compares favourably against competing solutions case various Gaussian impulsive noises. The incorporation nonlinear function KED test statistic allows for development algorithm...

The use of wireless implant technology requires correct delivery the vital physiological signs patient along with energy management in power-constrained devices. Toward these goals, we present an augmentation protocol for physical layer Medical Implant Communications Service (MICS) focus on efficiency deployed devices over MICS frequency band. uses rateless code Frequency Shift Keying (FSK) modulation scheme to overcome reliability and power cost concerns tiny implantable sensors due...

A groundbreaking design of radio access networks (RANs) is needed to fulfill 5G traffic requirements. To this aim, a cost-effective and flexible strategy consists complementing terrestrial RANs with unmanned aerial vehicles (UAVs). However, several problems must be solved in order effectively deploy such UAV-based (U-RANs). Indeed, due the high complexity heterogeneity these networks, model-based approaches, often relying on restrictive assumptions constraints, exhibit severe limitation...

Mobile edge computing (MEC) has been recognized as an emerging technology that allows users to send the computation-intensive tasks MEC server deployed at macro base station. This process overcomes limitations of mobile devices (MDs), instead sending data a cloud which is far away from MDs. In addition, results in decreasing latency and improves quality service. this article, scenario 5G networks considered, several request for computation service cell. We assume can access radio spectrum by...

Owing to the unique characteristics of sensor devices, finding energy-efficient modulation with a low-complexity implementation (refereed as green modulation) poses significant challenges in physical layer design wireless networks (WSNs). Towards this goal, authors present an in-depth analysis on energy efficiency various schemes using realistic models IEEE 802.15.4 standard find optimum distance-based scheme WSN over Rayleigh and Rician fading channels path loss. The describe proactive...

A point-to-multipoint system consisting of an optical transmitter (known as the central node) equipped with apertures, and users communicating over free-space (FSO) channels is considered. It assumed that each link suffers from weak-turbulence conditions. The main goal this paper to analyze performance for various multiuser diversity scheduling schemes in terms turbulence strength, throughput latency perspectives. demonstrated proposed low greedy scheme (i.e., node serves at time slot user...

To achieve the full multiplexing gain of a <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="TeX">$K$</tex-math></inline-formula> -multiuser multiple-input–multiple-output (MIMO) overlay cognitive radio (CR) network, distributed opportunistic interference alignment (DOIA) technique using new beamforming algorithm, namely, threshold-based (TBF), is proposed. The MIMO CR system consists one primary user (PU) and...

This article considers a two-tier heterogeneous network consisting of conventional sub-6-GHz macrocells along with millimeter-wave (mmWave) small cells, where mobile devices (MDs) can connect to either macrocell or cells opportunistically via the nonorthogonal multiple access (NOMA) protocol. We employ queuing theory in our model conduct an assessment on execution delay, energy consumption and total cost offloading tasks mobile-edge computation (MECO) system. The main goal is design...

Vehicular networks are known for their dynamic topology, high mobility, and frequent disconnections. Unmanned aerial vehicles (UAVs) have been recently used as instant communication relays to bridge the gaps between terrestrial improve connectivity in vehicular overcome aforementioned problems. Despite existing work literature where each vehicle connects directly UAVs, this studies how clustering different densities of affect delay energy efficiency a UAV-based network integrated with 5G...

In this paper, we propose a novel physical layer design for beam transmission that enhances the data security in terrestrial free-space optical (FSO) communication system. The transmitter sends successive packets through different paths between apertures and receiver using acousto-optic deflectors (AODs) with synthetic holographic gratings. Increasing radius intensity of at link raises probability eavesdropping; however, these parameters are sensitive to atmospheric turbulence. More...

This article addresses a real-time monitoring mechanism of vital signs patients in three-tier Internet Medical Things-based software-defined-wireless body area network. The challenging issues are energy efficiency, interference, delay, emergency conditions, and reliability. We propose two-tier scheduling algorithm which Walsh Hadamard codes employed to avoid the interference decrease delay consumption tier I. To schedule transmission different II [i.e., transmissions between hubs access...

This paper deals with the problem of statistical and system heterogeneity in a cross-silo Federated Learning (FL) framework where there exist limited number Consumer Internet Things (CIoT) devices smart building. We propose novel Graph Signal Processing (GSP)-inspired aggregation rule based on graph filtering dubbed ``G-Fedfilt''. The proposed aggregator enables structured flow information graph's topology. behavior allows capturing interconnection CIoT training domain-specific models....

In recent years, there has been growing enthusiasm for employing Unmanned Aerial Vehicles (UAVs) as an innovative technology with significant potential the next generation of wireless networks. Hence, Quality Service (QoS) clients within Internet Things (IoT) infrastructure can be considerably enhanced by integrating UAVs into systems. However, maximizing QoS and ensuring user information security poses challenges in determining trajectory UAVs, they need to account mobility density users....

A non-regenerative dual-hop wireless system based on a distributed space-time coding strategy is considered. It assumed that each relay retransmits an appropriately scaled coded version of its received signal. The main goal this paper to investigate power allocation in stations, which minimizing the outage probability. In high signal-to-noise ratio regime for relay-destination link, it shown threshold-based scheme (i.e., remains silent if channel gain with source less than prespecified...

This paper investigates an Unmanned Aerial Vehicle (UAV)-enabled network consisting of smart mobile devices and multiple UAVs as aerial base stations in a Multiple-Input Multiple-Output (MIMO) architecture. Mobile are partitioned into several clusters offload their tasks to the UAV servers via Non-Orthogonal Multiple Access (NOMA) protocol. The main goal is jointly maximize number served terrestrial users scheduling. Moreover, 3D placement optimized. To this end, we formulate optimization...

This article considers an ultradense heterogeneous network (UDHN) consisting of cache-enabled unmanned aerial vehicles (UAVs) and Internet Things mobile devices (IMDs) receiving their requested contents via the power domain nonorthogonal multiple access (PD-NOMA) protocol. Employing fast global <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${K}$ </tex-math></inline-formula> -means (FGKMs) algorithm, IMDs...

This paper presents an in-depth analysis on the energy efficiency of Luby Transform (LT) codes with Frequency Shift Keying (FSK) modulation in a Wireless Sensor Network (WSN) over Rayleigh fading channels pathloss. We describe proactive system model according to flexible duty-cycling mechanism utilized practical sensor apparatus. The present is based realistic parameters including effect channel bandwidth used IEEE 802.15.4 standard, active mode duration and computation energy. A...

This paper introduces the novel concepts for decentralized relay-selection schemes based on coalitional game theory that establishes dynamic formation of coalitions in a wireless relay network. We present an efficient power-allocation protocol data transmission among noncooperative power control game. Through this theoretical framework, source nodes are able to form stable and set their completely distributed fashion. Numerical results show proposed algorithm achieves significant reduction...

The paper is motivated by the urgent need, imposed COVID-19 pandemic, for trustworthy access to secure communication systems with highest achievable availability and minimum latency. In this regard, we focus on an ultra-dense wireless network consisting of Femto Access Points (FAPs) Unmanned Aerial Vehicles (UAVs), known as caching nodes, where there are more than one possible node handle user's request. To efficiently cope dynamic topology networks time-varying behavior ground users, our...