With the progressive exhaustion of fossil energy and enhanced awareness environmental protection, more attention is being paid to electric vehicles (EVs). Inappropriate siting sizing EV charging stations could have negative effects on development EVs, layout city traffic network, convenience EVs' drivers, lead an increase in network losses a degradation voltage profiles at some nodes. Given this background, optimal sites are first identified by two-step screening method with factors service...

Some uncertainties, such as the uncertain output power of a plug-in electric vehicle (PEV) due to its stochastic charging and discharging schedule, that wind generation unit speed, solar generating source illumination intensity, volatile fuel prices, future load growth could lead some risks in determining optimal siting sizing distributed generators (DGs) distribution system planning. Given this background, under chance constrained programming (CCP) framework, new method is presented handle...

Integrated sensing and communications (ISAC) technology has attracted increasing attention to enable various emerging applications in the future wireless networks. However, uncontrollable electromagnetic environments still restrict performance of both radar communication ISAC For above issue, this paper leverages a novel simultaneously transmitting reflecting reconfigurable intelligent surface (STAR-RIS) provide extensive reliable coverage for Thereinto, STAR-RIS can not only elevate...

The KPZ fixed point is a (1+1)-dimensional space-time random field conjectured to be the universal limit for models within Kardar-Parisi-Zhang (KPZ) universality class. We consider with narrow-wedge initial condition, conditioning on large value at specific point. By zooming in neighborhood of this high appropriately, we obtain limiting which call an upper tail Different from point, where time parameter has nonnegative, defined full $2$-dimensional space. Especially, if zoom out it behaves...

This article investigates the joint impact of residual hardware impairments (RHIs) and self-interference (RSI) at all transceivers on system outage performance for a simultaneous wireless information power transfer (SWIPT) enabled full-duplex two-way decode-and-forward (DF) relay network. Considering time switching scheme node, we derive probability in closed-form, further identify overall ceiling (OSC) effect caused by only RHIs. More specifically, when data rate exceeds OSC threshold...

Orthogonal time frequency space (OTFS), as a novel 2-D modulation technique, has been proposed to achieve better BER performances over delay-Doppler channels. In this paper, we propose two different power allocation (PA) algorithms in OTFS systems with zero forcing (ZF) or minimum mean square error (MMSE) equalization, where general formulas PA are derived advance under the condition of (MBER) criterion. On one hand, suboptimal MBER method is put forward performances, and then analytical...

Cellular vehicle-to-everything (C-V2X) communication, as a part of 5G wireless communications, has been considered one the most significant techniques for Smart City. Vehicles platooning is an application City that improves traffic capacity and safety by C-V2X. However, different from vehicles travelling on highways, C-V2X could be more easily eavesdropped spectrum resource limited when converge at intersection. Satisfying secrecy rate C-V2X, how to increase efficiency (SE) energy (EE) in...

Backscatter communication (BackCom) networks are vulnerable to eavesdropping, while its secrecy performance has not been sufficiently studied. In this letter, we propose a tag selection strategy optimize the ergodic capacity (ESC) and outage probability (SOP) simultaneously for multi-tag self-powered BackCom network in presence of an eavesdropper. Concretely, adaptive power reflection coefficient scheme is first designed maximize instantaneous per tag, based on which one with highest...

Reconfigurable intelligence surface (RIS)-enabled integrated sensing and communication (ISAC) is vulnerable to eavesdropping, thus its secure transmission a crucial research field. In this paper, we integrate promising simultaneous transmitting reflecting RIS (STAR-RIS) into an ISAC network improve the physical layer security, where with presence of eavesdropper, base station (BS) sends multicast signal combined dedicated perform both multi-user single-target detection. Thereinto, STAR-RIS...

With the enhanced awareness of energy-saving, emission-reduction and environmental protection, distributed generators (DGs) have been increasingly employed in modern power systems, especially distribution systems. DG can not only reduce energy losses, delay expansion transmission systems hence investment, but also enhance security stability system concerned, improve voltage quality, increase utilization pollution emission. However, these advantages be fully explored if sitting sizing DGs are...

This paper investigates the system outage performance of a simultaneous wireless information and power transfer (SWIPT) based two-way decode-and-forward (DF) relay network, where potential hardware impairments (HIs) in all transceivers are considered. After harvesting energy decoding messages simultaneously via splitting scheme, energy-limited node forwards decoded to both terminals. Each terminal combines signals from direct relaying links selection combining. We derive probability under...

The well-established under-frequency load shedding (UFLS) is deemed to be the last of effective remedial measures against a severe frequency decline power system. With ever-increasing size systems and extensive penetration distributed generators (DGs) in systems, problem developing an optimal UFLS strategy facing some new challenges. Given this background, for distribution system with DGs static characteristics taken into consideration developed. Based on rate change frequency, presented...

Increased power transfers over a wide geographical area impact the small-signal stability of system, defined as ability to damp oscillations between generators in different areas. Wide-area control architectures have been proposed order mitigate these oscillations. Ensuring that all unstable oscillating modes are removed depends on selecting subset participate wide-area control, which is inherently discrete optimization problem current literature does not any solution algorithms with...

Proper placement and sizing of Distributed Generation (DG) in distribution system can obtain maximum potential benefits. This paper proposes quantum particle swarm algorithm (QPSO) based wind turbine generation unit (WTGU) photovoltaic (PV) array approach for real power loss reduction voltage stability improvement system. Performance modeling solar are described classified into PQ\PQ (V)\PI type models flow. Considering the WTGU PV DGs is geographical restrictive, optimal area DG capacity...

Gas-insulated equipment such as GIS (Gas-Insulated Substation) and GIL transmission lines) faces critical insulation failure challenges caused by particles inside. However, the particle traps, key devices available to inhibit movement of particles, lack theoretical basis quantitative methodology for trap design especially with high voltage ratings. In this paper, a motion excitation observation platform is established physically simulate actual online operating conditions HVAC/HVDC GIS/GIL...

With the growing awareness of environmental protection, energy savings, and economic scenarios, distributed generators (DGs) have been playing an increasingly important role in power systems (PSs) all over world. DGs applications potential impacts on PSs paid more attention recent years. However, benefits not yet systematically examined by qualitative quantitative analysis most existing literatures. A proper understanding these is for extensive PSs. Given this background, various are...

In this paper, we investigate the system outage probability of a simultaneous wireless information and power transfer (SWIPT) based two-way amplify-and-forward (AF) relay network considering transceiver hardware impairments (HIs), where energy-constrained node processes received signals on splitting protocol two terminals employ selection combining (SC) scheme to exploit from direct relaying links. Assuming independent but non-identically distributed Nakagami-m fading channels, derive in...

As an emerging technology that integrates radar and communication functions, the integrated sensing (ISAC) is regarded as key to future mobile requirements. In this paper, we propose ISAC framework based on weighted-type fractional Fourier transform orthogonal time frequency space (WFRFT-OTFS) waveform, which can flexibly adjust parameters optimize performances jointly. Additionally, features of WFRFT-OTFS waveform are deeply investigated for different weighting orders. Furthermore,...

Ultrasound application has been proven to be a promising noninvasive neuromodulation technique due the high penetration depth, and focusing properties. Compared single-element ultrasonic transducers, phased array transducers have advantages of adjustable targets higher accuracy, making them more suitable for transcranial technology. However, there is currently limited research on transducer linear sinusoidal driving system precise neuromodulation. This article develops new type drive system,...

Abstract The cooling condition of the landfalling segment submarine cable is not good, so it prime importance to consider its temperature dependence. To investigate performance circulating spraying cold-water pipe, a transient thermal path model and three-dimensional mathematical multi-physical coupling fields in were established, device platform was built. dependence every structural floor under two models discussed contrasted, studied.