Ocean bottom sensor nodes can be used for oceanographic data collection, pollution monitoring, offshore exploration and tactical surveillance applications. Moreover, Unmanned or Autonomous Underwater Vehicles (UUVs, AUVs), equipped with sensors, will find application in of natural undersea resources gathering scientific collaborative monitoring missions. acoustic networking is the enabling technology these Networks consist a variable number sensors vehicles that are deployed to perform tasks...

In recent years, the growing interest in wireless sensor network (WSN) has resulted thousands of peer-reviewed publications. Most this research is concerned with scalar networks that measure physical phenomena, such as temperature, pressure, humidity, or location objects can be conveyed through low-bandwidth and delay-tolerant data streams. Recently, focus shifting toward aimed at revisiting paradigm to enable delivery multimedia content, audio video streams still images, well data. This...

The Open Radio Access Network (RAN) and its embodiment through the O-RAN Alliance specifications are poised to revolutionize telecom ecosystem. promotes virtualized RANs where disaggregated components connected via open interfaces optimized by intelligent controllers. result is a new paradigm for RAN design, deployment, operations: networks can be built with multivendor, interoperable components, programmatically centralized abstraction layer datadriven closed-loop control. Therefore,...

The availability of low-cost hardware is enabling the development wireless multimedia sensor networks (WMSNs), i.e., resource-constrained devices that can retrieve content such as video and audio streams, still images, scalar data from environment. In this paper, ongoing research on <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">prototypes</i> xmlns:xlink="http://www.w3.org/1999/xlink">of</i>...

UnderWater Acoustic Sensor Networks (UW-ASNs) consist of sensors and Autonomous Underwater Vehicles (AUVs) performing collaborative monitoring tasks. In this article, UWMAC, a distributed Medium Access Control (MAC) protocol designed for UW-ASNs, is introduced. The proposed MAC transmitter-based Code Division Multiple (CDMA) scheme that incorporates novel closed-loop algorithm to jointly set the optimal transmit power code length. CDMA most promising physical layer multiple access technique...

The Internet of Things (IoT) realizes a vision where billions interconnected devices are deployed just about everywhere, from inside our bodies to the most remote areas globe. As IoT will soon pervade every aspect lives and be accessible anywhere, addressing critical security threats is now more important than ever. Traditional approaches applied as an afterthought "patch" against known attacks insufficient. Indeed, next-generation challenges require new secure-by-design vision, addressed...

Next generation (NextG) cellular networks will be natively cloud-based and built on programmable, virtualized, disaggregated architectures. The separation of control functions from the hardware fabric introduction standardized interfaces enable definition custom closed-control loops, which ultimately embedded intelligence real-time analytics, thus effectively realizing vision autonomous self-optimizing networks. This article explores network architecture proposed by O-RAN Alliance as a key...

Radio fingerprinting uniquely identifies wireless devices by leveraging tiny hardware-level imperfections inevitably present in off-the-shelf radio circuitry. This way, can be directly identified at the physical layer analyzing unprocessed received waveform - thus avoiding energy-expensive upper-layer cryptography that resource-challenged embedded may not able to afford. Recent advances have proven convolutional neural networks (CNNs) thanks their multidimensional mappings achieve accuracy...

Recent evolutions in semiconductors have brought the terahertz band spotlight as an enabler for terabit-per-second communications 6G networks. Most of research so far, however, has focused on understanding physics devices, circuitry and propagation, studying physical layer solutions. However, integrating this technology complex mobile networks requires a proper design full communication stack, to address link- system-level challenges related network setup, management, coordination, energy...

Due to the unprecedented scale of Internet Things, designing scalable, accurate, energy-efficient and tamper-proof authentication mechanisms has now become more important than ever. To this end, in paper we present ORACLE, a novel system based on convolutional neural networks (CNNs) “fingerprint” (i.e., identify) unique radio from large pool devices by deep-learning fine-grained hardware impairments imposed circuitry physical-layer I/Q samples. First, show how hardware-specific imperfections...

Cellular networks are undergoing a radical transformation toward disaggregated, fully virtualized, and programmable architectures with increasingly heterogeneous devices applications. In this context, the open architecture standardized by O-RAN Alliance enables algorithmic hardware-independent Radio Access Network (RAN) adaptation through closed-loop control. introduces Machine Learning (ML)-based network control automation algorithms as so-called <italic...

The next generation of cellular networks will be characterized by softwarized, open, and disaggregated architectures exposing analytics control knobs to enable network intelligence via innovative data-driven algorithms. How practically realize this vision, however, is largely an open problem. For a given optimization/automation objective, it currently unknown how select which models should deployed where, parameters control, feed them appropriate inputs. In paper, we take decisive step...

5G and beyond mobile networks will support heterogeneous use cases at an unprecedented scale, thus demanding automated control optimization of network functionalities customized to the needs individual users. Such fine-grained Radio Access Network (RAN) is not possible with current cellular architecture. To fill this gap, Open RAN paradigm its specification introduce "open" architecture abstractions that enable closed-loop provide data-driven, intelligent user-level. This obtained through...

Wireless network emulators are being increasingly used for developing and evaluating new solutions Next Generation (NextG) wireless networks. However, the reliability of tested on emulation platforms heavily depends precision process, model design, parameter settings. To address, obviate, or minimize impact errors models, in this work, we apply concept Digital Twin (DT) to large-scale systems. Specifically, demonstrate use Colosseum, world?s largest emulator with hardware-in-the-loop, as a...

In this paper, architectures for two-dimensional and three-dimensional underwater sensor networks are discussed. A detailed overview on the current solutions medium access control, network, transport layer protocols given open research issues

In this paper, different deployment strategies for two-dimensional and three-dimensional communication architectures UnderWater Acoustic Sensor Networks (UW-ASNs) are proposed, statistical analysis both is provided. The objectives of paper to determine the minimum number sensors needed be deployed achieve optimal sensing coverage, which dictated by application; provide guidelines on how choose surface area, given a target region; study robustness sensor network node failures, an estimate...

Underwater sensor networks consist of sensors and vehicles deployed to perform collaborative monitoring tasks over a given region. will find applications in oceano-graphic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, tactical surveillance, mine reconnaissance. acoustic networking is the enabling technology for these applications. In this paper, an architecture three-dimensional underwater considered, model characterizing channel...

In this paper, coordination and communication problems in wireless sensor actor networks (WSANs) are jointly addressed a unifying framework. A sensor-actor model is proposed based on an event-driven partitioning paradigm. Sensors partitioned into different sets, each set constituted by data-delivery tree associated with actor. The optimal solution for the strategy determined mathematical programming, distributed proposed. addition, new actor-actor problem introduced. formulated as task...

Throughput maximization is one of the main challenges in cognitive radio <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ad hoc</i> networks, where availability local spectrum resources may change from time to and hop by hop. For this reason, a cross-layer opportunistic access dynamic routing algorithm for networks proposed, which called spectrum-allocation (ROSA) algorithm. Through control actions, ROSA aims maximize network throughput performing...