Validation geometry changes what a received-power prediction error describes. We benchmark established cross-validation designs on 2,967,199 aggregated 25 m location records from four UK operators and three Ofcom 5G SS-RSRP campaigns. A 10 km blocked...
The rapid growth of corporate networks and the wide use of “Bring Your Own Device” (BYOD) policies have made these networks harder to secure and manage. One visible consequence is the spread of unauthorized, unmanaged switches and wireles...
Ensuring Quality of Service (QoS) in complex, large scale, and centralized Software-Defined Networking (SDN) environments remains a major challenge for the scientific community, network administrators or operators, and industry. The SDN networking mo...
Active reconfigurable intelligent surfaces amplify the reflected signal using amplifiers integrated into their elements. The signal model adopted throughout the literature treats each amplifier as a constant gain applied jointly to the incident signa...
Modern supply chains rely on permissioned blockchain networks that frequently operate as isolated entities, resulting in fragmented data, limited visibility, and inconsistent governance. This research addresses these challenges by proposing “In...
Radio frequency (RF) spectrum has emerged as a strategic public resource underpinning digital transformation, broadband connectivity, artificial intelligence (AI), Internet of Things (IoT) ecosystems, cloud computing, and next-generation wireless com...
Industrial digital twin networks require low-latency delivery and temporal alignment of correlated multi-source traffic under dynamic congestion. This paper proposes a synchronization-constrained multi-agent traffic-scheduling method for industrial d...
The performance of fifth-generation New Radio (5G NR) networks is typically evaluated layer by layer, using disconnected methodologies that make it difficult to compare the returns of design decisions across layers or to trace how deficiencies at one...
This article proposes a deep reinforcement learning-based hybrid optical–RF communication framework for Ultra-Reliable Low-Latency Communication (URLLC) networks under dynamic wireless and atmospheric channel conditions. The proposed system int...
Indoor users served by outdoor macro base stations often experience degraded radio performance due to penetration loss, which leads to inefficient spectrum utilization. In a neutral-host deployment, an MNO subscriber entering an indoor venue should b...
Cooperative cognitive radio networks (CCRANs) not only improve spectrum utilization efficiency by sharing spectrum resources between primary and secondary systems but also expand wireless coverage by relay cooperative communications, while UAV commun...
Our primary focus in this study is on the potential benefits to military communications from integrating Non-Terrestrial Networks (NTN) into the existing 5G terrestrial network architecture. Despite current 3rd Generation Partnership Project (3GPP) s...
As the railway industry undergoes digital transformation driven by AI, big data, and 5G/6G, secure data transmission for IoT-oriented railway operations has become a critical challenge in high-speed railway (HSR) wireless communications. Covert commu...
Routing compensation can preserve a message after one node fails while leaving delivery vulnerable to joint failures. We analyze matched, identity-closed UDP message outcomes in seven-day vehicular network scenarios from Hohhot. Six message fates dis...
This correspondence extends a previously introduced waveform-domain monostatic passive radar from single-target localization to simultaneous multi-target detection and localization. The radar employs a Sparse Uniform Circular Array (SUCA) with Determ...
The rapid evolution of 5G-NR and the increasing demand for secure and low-latency communications require strong error-correction techniques that are compatible with cryptographic systems. In this paper, a hybrid LDPC decoding algorithm, Split-Row Thr...
The dynamic and heterogeneous 5G traffic complicates short-term resource-demand prediction. While federated learning (FL) enables privacy-preserving training by keeping raw data local. However, FedAvg and FedProx do not explicitly account for client...
By adjusting antenna parameters, flexible antenna systems can dynamically reconfigure wireless channel characteristics to improve system performance. Non-orthogonal multiple access (NOMA) is a promising multiple access technique for enhancing the spe...
To address the issue that transmitters in existing decode-and-forward (DF) cooperative covert communications hardly acquire all the required channel state information (CSI), this study proceeds as follows. First, an adaptive power strategy for cooper...
This paper investigates millimeter-wave cluster characteristics for intra-vehicle access links in a passenger vehicle cabin. Double-directional measurements at 61.5 GHz were conducted for two selected receiver locations near the door switches. High-r...
Packet delay variation (jitter) affects the reliability and perceived quality of real-time IP services, but its models and metrics remain fragmented across layers and technologies. This structured survey synthesizes research published from 1990 throu...
Emergency, remote, and infrastructure-constrained environments cannot always rely on cellular networks or continuous Internet connectivity. LoRa offers an alternative for direct, long-range communication between low-power devices without depending on...
Digital television is an integral part of modern society, and the quality of the service its has exceeded all expectations. Television stations are divided into national and regional licensing categories, governed by the broadcasting regulations of e...
Beamforming for linear antenna arrays (LAAs) has become a critical research topic in advanced 5G and emerging 6G wireless communication systems due to the increasing demand for high spectral efficiency, interference mitigation, and enhanced radiation...
GPU LDPC latency comparisons across implementations are challenging due to variations in decoder schedules, batch granularity, and timing boundaries. Batch completion was characterized for FP32-layered and flooding decoders on a GPU, considering bloc...
Non-cooperative sensing using signals of opportunity traditionally requires an explicit reference signal for target detection and localization. This paper introduces a reference-free sensing framework in which target geometry is inferred directly fro...
This work introduces a novel self-sustainable wireless communication architecture that combines RIS and NOMA with a hybrid acoustic–magnetic energy harvesting framework. The source node operates under strict energy constraints and is powered by...
In resource-constrained unmanned aerial vehicle (UAV) infrared image transmission, infrared small targets usually occupy only a small number of pixels, while conventional uniform resource allocation strategies fail to consider the semantic difference...
This paper proposes a novel framework integrating Holographic Intelligent Surfaces (HISs) with magnetic energy harvesting at the source node to enable energy-efficient wireless communication. In the proposed system, energy harvesting is performed at...
This paper presents a multi-dimensional robustness evaluation framework for ultra-dense Internet of Things (UD-IoT) networks in smart city environments. The framework addresses the need to assess robustness beyond isolated indicators such as latency,...
In most railway divisions the results of scheduled inspections of automation and telemechanics field devices are still recorded on paper. Such records reach engineering management with a delay, are easy to lose, and are difficult to verify. This pape...
Telecommunications infrastructures are increasingly cloud-native, multi-vendor, and mission-critical environments, integrating 5G core networks, virtualized network functions, and software-defined infrastructure that expand the operational attack sur...
Network slicing allows a single 5G New Radio (NR) carrier to serve services with significantly different reliability targets. However, the cost of each slice in spectral and energy terms, once it is realized as a concrete uplink, is rarely measured....
Distributed multiple-input multiple-output (MIMO) is a promising architecture for future wireless systems because cooperation among geographically separated base stations (BSs) improves coverage, spectral efficiency, and link reliability. However, th...
Reliable dynamic spectrum access in wide-area cognitive radio networks (CRNs) is challenged by sparse and erroneous spectrum-sensing measurements. This work formulates spatial-spectrum occupancy reconstruction as an image inpainting problem and propo...
We propose optimal power allocation for a transmitter that operates with either the ARQ-I or CC-HARQ protocol in an interference-limited environment where both the desired and interfering signals experience Rayleigh fading, forming an analytically tr...
Deep learning (DL) has emerged as a promising alternative for signal detection in multiple-input multiple-output (MIMO) wireless communication systems, achieving a performance close to the optimal maximum likelihood (ML) criterion. However, implement...
The digital divide in developing economies persists as a multidimensional challenge encompassing infrastructure access, digital skills, usage patterns, and social inequality. This paper presents a structured literature review of 63 peer-reviewed arti...
Orthogonal time-frequency space (OTFS) modulation is a promising waveform for integrated sensing and communication (ISAC) in high-mobility environments, where both large Doppler shifts and target delays must be accurately handled. Existing CP-OTFS ra...
Compact sub-6 GHz and wireless local area network (WLAN) multiple-input multiple-output (MIMO) antennas require broad impedance coverage and low inter-port coupling within limited footprints. This work presents a two-port Koch-fractal U-slot antenna...
Federated learning (FL) enables cellular traffic prediction without centralizing raw base-station data, but statistical heterogeneity makes a single global model unsuitable for many clients. This paper proposes federated clustering with adaptive pers...
Industrial supervision can be expanded through the Internet of Things (IoT) without moving the control logic outside the PLC. This study evaluates a level-monitoring and control architecture using a point-to-point LoRa link between two Siemens S7-120...
Low Earth orbit mobile satellite system (LEO-MSS) is a major system that provides communication support for mobile terminals beyond the coverage of terrestrial communication systems. However, passive handover happens frequently, caused by the quick m...
This work presents, for the first time, visibility measurements carried out in five locations in Colombia (Yopal, San Andrés, Montería, Puerto Carreño, and Villavicencio) during their respective months of lowest visibility, using...
The integration of low-Earth-orbit (LEO) satellites with unmanned aerial vehicles (UAVs) promises high-throughput and flexible wireless connectivity, yet it faces critical challenges in simultaneously guaranteeing data rates and long-term energy harv...
The expansion of Internet-of-Things (IoT) deployments in 5G New Radio (NR) networks has made periodic measurement reporting a growing burden for low-mobility devices, which benefit little from frequent updates yet must report as often as highly mobil...
Aiming at the problem of high-precision positioning difficulties caused by the complete loss of lock of GNSS signals, strong multipath, and non-line-of-sight (NLOS) propagation in indoor pseudolite positioning, this paper builds a pseudolite position...
Smart cities (SCs) use the Internet of Things (IoT) to collect and process data to communicate with their infrastructure and assets in real time. A great deal of techniques, such as encryption protocols, Random Forest-based AI-driven threat detection...
Reliable estimation of radio wave propagation across irregular terrain is essential for the effective planning and optimization of contemporary wireless communication systems, such as cellular networks, broadcasting infrastructure, and radar systems....
To ensure the guidance accuracy and flight safety of instrument landing systems (ILSs), it is imperative to mitigate multipath interference caused by reflections from airport structures, whose core detrimental effect is the excess deviation of the di...
