This letter proposes a Bayesian channel estimation method that leverages on the priori information provided by Electromagnetic Digital Twin's (EM-DT) representation of environment. The proposed approach is compared with several conventional techniques in terms Normalized Mean Square Error (NMSE), spectral efficiency, and number pilots. Simulations prove more than $10\,$dB gain NMSE efficiency comparable to ideal state information, for different signal-to-noise ratio (SNR) values....

Recent advances in Vehicle-to-Everything (V2X) technology and the upcoming sixth-generation (6G) network will dawn a new era for vehicular services with enhanced communication capabilities. Connected Autonomous Vehicles (CAVs) are expected to deliver transportation experience, increasing safety efficiency of road networks. The use millimeter-wave (mmW) frequencies guarantees huge amount bandwidth ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Integrated sensing and communication (ISAC) systems are recognized as one of the key ingredients sixth generation (6G) network. A challenging topic in ISAC is design a single waveform combining both functionalities on same time-frequency-space resources, allowing tuning performance with partial or full hardware sharing. This paper proposes dual-domain approach that superposes onto frequency-time (FT) domain legacy orthogonal frequency division multiplexing (OFDM) signal one, purposely...

Direct communication among vehicles, namely vehicle-to-vehicle (V2V), as part of vehicle-to-everything (V2X) system, will enable most the upcoming Connected and Autonomous Vehicles (CAVs) applications. Nevertheless, challenging requirements imposed by vehicular environment necessitate advanced control mechanisms. Traditional Radio Access Networks (RANs) lack necessary flexibility to address these needs. The emerging Open RAN (O-RAN) concept offers a promising solution for orchestrating V2X...

The adoption of Unmanned Aerial Vehicles (UAVs) for public safety applications has skyrocketed in the last years. Leveraging on Physical Random Access Channel (PRACH) preambles, this paper we pioneer a novel localization technique UAVs equipped with cellular base stations used emergency scenarios. We exploit new concept Orthogonal Time Frequency Space (OTFS) modulation (tolerant to channel Doppler spread caused by motion) build fully standards-compliant OTFS-modulated PRACH transmission and...

Vehicular communications at high frequencies are envisioned to be a breakthrough application for the 6G cellular systems. Traditional Radio Access Networks (RANs) lack flexibility enable sophisticated control mechanisms that demanded by strict performance requirements of dynamic vehicular environment. In contrast, features Open RAN (O-RAN) can exploited support advanced use cases. Indeed, emerging paradigm O-RAN represents an ideal framework orchestration communication. Although potential...

The role of wireless communications in guaranteeing safe and resource-efficient intelligent transportation systems (ITS) is great significance. With the advent a new technological epoch cellular network development, various novel technical solutions are being considered as key enablers for future 5G-beyond 6G networks. In this position paper, we identify discuss three pillars evolution that suppose to be foundation practical deployment mass ITS. We first show how edge-located may help data...

The Third Generation Partnership Project (3GPP) has recently introduced millimeter Waves (mmWaves) in Release 16, with Vehicle-to-Everything (V2X) communications as the primary use-case. To overcome strong attenuation at mmWaves, beam-based are used, although they require a beam selection procedure each initial access or after detecting link failure. 5G New Radio (NR) standard selects best by implementing an omnidirectional spatial scanning, which increases communication delay and overhead....

Vehicle-to-vehicle (V2V) resource allocation (RA) schemes have been introduced in the cellular V2V (C-V2V) standard for sidelink (SL) communications to allow an efficient sharing of time-frequency resources sub-6 GHz bands. However, recent progress connected and automated vehicles introduction new bandwidth-eager mobility services are driving towards use millimeter-wave (mmW) frequencies (24.25-52.6 GHz). A characteristic propagation at mmW is severe path loss attenuation that can be...

The combination of the effects Doppler frequency shifts (due to mobility) and phase noise imperfections oscillators operating at a high carrier frequency) poses serious challenges Orthogonal Frequency Division Multiplexing (OFDM) wireless transmissions in terms channel estimation tracking performance associated pilot overhead required for that tracking. In this paper, we use separate sets Basis Expansion Model (BEM) coefficients modelling time variation over intervals several OFDM symbols...

This paper illustrates the potential of an Integrated Sensing and Communication (ISAC) system, operating in sub-6 GHz frequency range, for Synthetic Aperture Radar (SAR) imaging via Unmanned Aerial Vehicle (UAV) employed as aerial base station. The primary aim is to validate system's ability generate SAR imagery within confines modern communication standards, including considerations like power limits, carrier frequency, bandwidth, other relevant parameters. presents two methods processing...

The rapid expansion of connected and autonomous vehicles (CAVs) the shift towards millimiter-wave (mmWave) frequencies offer unprecedented opportunities to enhance road safety traffic efficiency. Sidelink communication, enabling direct Vehicle-to-Vehicle (V2V) communications, play a pivotal role in this transformation. As communication technologies transit higher frequencies, associated increase bandwidth comes at cost severe path penetration loss. In response these challenges, we...

Neuropathies are gaining higher relevance in clinical settings, as they risk permanently jeopardizing a person's life. To support the recovery of patients, use fully implanted devices is emerging one most promising solutions. However, these devices, even if becoming an integral part complex neural nanonetwork system, pose numerous challenges. In this article, we address them, which consists classification motor/sensory stimuli. The task performed by exploring four different types artificial...

The design of waveforms catering to both communication and sensing functionalities emerges as a pivotal aspect in Integrated Sensing Communication (ISAC) systems. Orthogonal Frequency Division Multiplexing (OFDM), currently used for purposes, requires accurate time synchronization. This paper presents an experimental exploration novel ISAC waveform, which superimposes the legacy OFDM onto low power wide bandwidth signal, with focus synchronize transmitters receivers. Our proposed method...

Neuropathies are gaining higher relevance in clinical settings, as they risk permanently jeopardizing a person's life. To support the recovery of patients, use fully implanted devices is emerging one most promising solutions. However, these devices, even if becoming an integral part complex neural nanonetwork system, pose numerous challenges. In this article, we address them, which consists classification motor/sensory stimuli. The task performed by exploring four different types artificial...

This paper proposes a novel waveform design method named COSMIC (Connectivity-Oriented Sensing Method for Imaging and Communication). These waveforms are engineered to convey communication symbols while adhering an extended orthogonality condition, enabling their use in generating radio images of the environment. A Multiple-Input Multiple-Output (MIMO) Radar-Communication (RadCom) device transmits from each antenna simultaneously within same time window frequency band, indicating that is not...

Digital Twin has emerged as a promising paradigm for accurately representing the electromagnetic (EM) wireless environments. The resulting virtual representation of reality facilitates comprehensive insights into propagation environment, empowering multi-layer decision-making processes at physical communication level. This paper investigates digitization propagation, with particular emphasis on indispensable aspect ray-based simulation real-time Twins. A benchmark simulations is presented to...