Advances in visible light communication (VLC) technology and the ubiquity of illumination facility have led to a growing interest VLC-based indoor positioning. Numerous techniques been proposed obtain better system performance. In this paper, we survey over 100 papers ranging from pioneering state-of-the-art field present positioning technology. Not only emitting diode technology, modulation method types receivers are compared but also novel taxonomy is proposed. systems (VLC-based-IPSs)...

This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on availability of accurate channel tracking requiring large training overhead computational complexity. Motivated by this, we adopt a deep learning (DL) approach to implicitly learn features historical channels directly predict matrix be adopted for next time slot maximize average...

In cyber physical systems, communication is needed for conveying sensor observations to controllers; thus, the design of sub-system key importance stabilization system dynamics. this paper, multicast routing studied networking decentralized sensors and controllers. The challenges uncertain destinations multiple modes, which are significantly different from traditional data networks, addressed by employing theories hybrid systems linear matrix inequalities, thus forming a novel framework...

A smart grid is delay sensitive and requires the techniques that can identify react on abnormal changes (i.e., system fault, attacker, shortcut, etc.) in a timely manner. In this paper, we propose real-time detection scheme against false data injection attack networks. Unlike classical test, proposed algorithm able to tackle unknown parameters with low complexity process multiple measurements at once, leading shorter decision time better accuracy. The objective detect adversary as quickly...

In modern smart grid networks, the traditional power is empowered by technological advances in sensing, measurement, and control devices with two-way communications between suppliers consumers. The integration helps networks to be smarter, but it also increases risk of attacks because existing obsolete cyber-infrastructure. this article, we focus on bad data injection for grid. basic problem formulation presented, special type stealth attack discussed. Then investigate strategies defenders...

Compressive sensing is a revolutionary idea proposed recently to achieve much lower sampling rate for sparse signals. For large wireless sensor networks, the events are relatively compared with number of sources. Because deployment cost, sensors limited, and due energy constraint, not all turned on time. In this paper, first contribution formulate problem event detection in networks as compressive problem. The (wake-up) can be greatly reduced similar level events, which smaller than total...

It is a key task in smart grid to send the readings of meters an access point (AP) wireless manner. The requirements scalability, realtimeness and security make meter reading highly challenging. On assuming that number large data burst sparse, i.e., only small fraction are reporting their power loads at same time, technique compressed sensing applied for reading. distinguishing feature active allowed transmit simultaneously AP able distinguish reports from different meters. simultaneous...

System state estimation and control are important issues to ensure the stability reliability of smart grid system. In this paper, problem how securely estimate system is studied. setup studied, sensor(s) controller communicate with each other through a wireless channel subjected monitoring by an eavesdropper. The capacity requirement that ensures negligible information leakage eavesdropper about messages studied from theoretic perspective. Two scenarios single sensor or multiple sensors...

In modern smart grid networks, the traditional power is enabled by technological advances in sensing, measurement, and control devices with two-way communications between suppliers customers. The integration helps networks to be smarter, but it also increases risk of adversaries because currently obsoleted cyber-infrastructure. Adversaries can easily paralyzes facility misleading energy management system injecting false data. this paper, we proposes a defense strategy malicious data...

An experiment is carried out to measure the power consumption of households. The analysis on real measurement data shows that significant change arrives in a Poisson manner. Based this experiment, novel wireless communication scheme proposed for advanced metering infrastructure (AMI) smart grid can significantly improve spectrum efficiency. main idea transmit only when occurs. On other hand, policy transmitting occurs may bring security issue; i.e., an eavesdropper monitor daily life house...

Smart grid is an emerging technology which able to control the power load via price signaling. The communication between supplier and customers a key issue in smart grid. Performance degradation like delay or outage may cause significant impact on stability of pricing based thus reward Therefore, QoS mechanism proposed for system grid, incorporates derivation requirement applies routing network. For deriving requirement, dynamics load-price mapping are studied. corresponding impacts...

This paper provides a survey on communications in CPS and tutorial of unified framework, i.e., hybrid system featured by the co-existence discrete continuous states, for design communication infrastructure cyber physical (CPS). First, with is modeled as system, which state mode while dynamics. The dynamical can be considered being switched among multiple modes corresponding to state. Then, converted problems provisioning scheduling. framework applied context smart grid special example shown...

Quickest detection is applied to frequency spectrum sensing in cognitive radio systems. Distribution change domain detected for vacating secondary networks from licensed band. A successive refinement based quickest proposed tackle the problem of unknown parameters primary signal. Cooperative used enhance performance systems without data fusion centers. Performance evaluated using theoretical analysis and numerical simulations.

The icing on transmission line conductor usually causes accidents such as galloping, breaking, tripping, and even network paralyzing, which could bring serious threats to the safe operation of power system. shape not only has a great influence estimate melting ice time or current, but also directly affects mechanical calculation galloping. Therefore, it is paramount determine shape. Many available artificial measurements are inaccurate ineffective enough in some cases. This paper proposes...

On-site investigations consistently show that the rock burst inherent to coal seams varies greatly with seam thickness. In this study, impact factors related thickness and surrounding strength were analyzed a corresponding risk assessment method was constructed. The model reflects influence of on stress distribution at roadway. Based roadway excavation range, is established accordingly. proposed based equivalent bursting liability. tested in 3500 mining area find it yields results as per are...

An increasing number of distributed energy resources (DERs), such as rooftop photovoltaic (PV), electric vehicles (EVs), and storage, are being integrated into the distribution systems. The rise DERs has come hand-in-hand with large amounts data generated explosive growth in collection, communication, control devices. In addition, a massive consumers involved interaction power grid to provide flexibility. Electricity consumers, networks, communication networks three main parts systems, which...

A real-time cognitive radio network testbed is being built. This the first paper to capture overall picture of this project. Project scope and philosophy, design architecture, hardware platform, key algorithms are reported. The use for smart grid time proposed in paper. unique ideal such purpose.

In this paper, we discuss the modeling and prediction of power frequency. Power frequency is one most essential parameters in monitoring, control, protection systems electric equipments because when a significant disturbance occurs system, varies time space. It critical to employ dependable model order optimize efficiency reliability Frequency Monitoring Network (FNET ), thus, prevent oscillation grid. This paper describes use state-space basis functions predict method, expectation...

Integrated sensing and communication (ISAC) has emerged as a pivotal technology for next-generation wireless radar systems, enabling high-resolution high-throughput with shared spectrum hardware. However, achieving fine resolution often requires high-rate analog-to-digital converters (ADCs) substantial storage, making it both expensive impractical many commercial applications. To address these challenges, this paper proposes an orthogonal time frequency space (OTFS)-based ISAC architecture...

While enhancing the efficiency and agility to power system, communication infrastructure in smart grid also incurs vulnerabilities reliability of market grid. A novel attacking scheme is proposed, which an attacker jams signaling price then ceases jamming when has been significantly changed. The users jammed by will make a rapid response changed price, whose change direction can be predicted attacker. Then, manipulate thus makes profit. abrupt consumption cause significant impact on...

The design of communication infrastructure in cyber physical system (CPS) is vital importance for proper operations dynamics. In this paper, the scheduling packet transmission over wireless networks CPS studied purpose state stabilization. To measure effective information amount different packets, concept virtual queue (VQ) defined based on delay-tolerant Kalman filtering. VQ-based back pressure algorithm proposed distributed data traffic scheduling. impact delays VQ lengths also formulation...

In this article, a novel direct torque control (DTC) using dynamic sector boundary is proposed for matrix converter (MC) fed permanent magnet synchronous motor drive system in order to minimize common-mode voltage (CMV) of the system, based on fact that rotating vectors produce zero CMV. According feature their relative position varies with varying phase input voltage, vector plane divided into sectors boundaries, and are redenoted dynamically. A switching table mapping established according...

A low sampling rate approach for recovering ultra wide band (UWB) signals is proposed, using distributed amplifiers (DAs) and speed analog-to-digital converters (ADCs) based on the theory of compressed sensing. microwave circuit consisting a bank DAs, followed by ADCs, designed to implement analog compressing, where elements measurement matrix are realized picosecond delay tap flexible gain coefficients in DAs. Numerical simulation shows that eight DAs ADCs with 500MHz can almost perfectly...