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Nowadays, many illumination applications require high optical output IR LED devices. These components are generating heat that needs to be extracted efficiently in order to achieve constant optical parameters and reliability of the illumination module. To achieve this, multiple PCBs with different technology can be used. FR4 and flexible printed circuit (FPC) are most common; FR4 based PCBs using ...Show More
A forward looking simulation platform for fuel cell hybrid powertrain is developed in Matlab/Simulink environment in this paper. Components of fuel cell hybrid powertrain are tested and characteristic parameters are obtained to build models. The component models are verified by comparing with experiment data. Diver model is constructed for forward looking simulation method. Controller model includ...Show More
Network Coding (NC) is used to transmit combined packets rather than sending them separately, resulting in both data rate and bandwidth savings. In this paper, the behavior of hard and soft decision encoding/decoding is investigated using Partial Unit Memory Turbo Code (PUMTC) as the forward error correction method, over the physical layer when communication between users (nodes) is performed via ...Show More
We evaluated the interaction of probabilistic shaping and forward error correction using low-density parity check. The results indicate that the shaping and the code rate should be simultaneously taken into consideration in probabilistic shaping system.Show More
In this paper, we investigate the influence of forward and reverse body bias stress on the hot carrier induced degradation of MOS analog performance parameters. The underlying physical mechanisms are identified with the help of experimental results, TCAD and Monte-Carlo simulations. We show that under forward body bias stress conditions, the auger recombination enhanced hot carrier injection (HCI)...Show More
Co-simulation model of forward hybrid electric vehicle (HEV) is established in this paper. And according to three aspects: traditional vehicle model (mechanism system model), electric system model and vehicle control strategy, the precision of the co-simulation model has been analyzed and checked by the revolving drum test bench of the First Automobile Workshop (FAW). The forward simulation model ...Show More
The switching versus forward conduction performance tradeoffs of 10 kV 4H-SiC PiN diodes are optimized using emitter injection control. Experimental results show superior switching performance with up to a 40% reduction in critical recovery parameters such as Qrr and JRP, while simulations indicate a better performance tradeoff than conventional PiN diodes in the presence of sufficiently long drif...Show More
This paper addresses the analysis of the Insulated Base MOS-Controlled Thyristor (IBMCT), a novel MOS-thyristor structure compatible with IGBT process technology. The IBMCT turn-off process is based on the existence of a Floating Ohmic Contact (FOC) which allows fast hole removal from the p-body region. The device operation mode and its electrical characteristics are analyzed with the aid of 2-D n...Show More
Real-time network simulation refers to simulating computer networks in real time so that the virtual network can interact with real implementations of network protocols, network services, and distributed applications. This paper proposes a new model for real-time simulation of large-scale networks based on powerful network processor. The scheme takes advantage of discrete event system simulation m...Show More
Forward error correcting (FEC) channel codes play a crucial role in improving the reliability of digital communication and storage systems. Blind estimation of FEC codes plays a significant role in military and spectrum surveillance applications. In this paper, novel blind estimation algorithms are proposed to estimate the codeword length of low-density parity check (LDPC) codes at the receiver co...Show More
Long range (LoRa) has attracted considerable attention from researchers in recent years due to its characteristics of long transmission distance and battery life. Moreover, LoRa has been widely used in many scenarios, including smart cities, fire monitoring. In the above scenarios, many types of access equipment with wide range are used. Data transmission is easily affected by the peripheral nodes...Show More
In recent years, the concept of physical layer security (PLS) has emerged as a promising approach to supplement tra-ditional cryptographic solutions. However, many PLS techniques rely on accurate knowledge of the channel state information (CSI) at the transmitter, which can be difficult to obtain in real-world scenarios. This paper presents a physical layer security scheme designed to enhance the ...Show More
A concatenated forward error correction (FEC) scheme, which takes a binary code and a Reed-Solomon code as its inner and outer code, respectively, has been adopted as one of the candidate schemes in the next-generation high-speed Ethernet standard (IEEE 802.3df). Unlike the other concatenated scheme used before, to possess a low latency feature, the interleaving depth in the new scheme is very sma...Show More
The authors are studying backward simulators which trace from results to causes for comprehensive verification of system safety. It is not easy to make a backward simulation model because the forward model may not be expressed in a reversible formula, or it is not reversible in cases of multiple inputs or inclusion of internal state variables. In this paper, we propose a backward simulator which c...Show More
Uncooled directly-modulated laser-diode modules with a driver IC were successfully demonstrated with a record-high mask margin of 15% under 10.7 Gbit/s (22% under 9.95 Gbit/s) even at 85/spl deg/C and an extinction ratio of 7.5 dB.Show More
The effect of mixed PN on the forward current of 1200V 4H-SiC MPS diodes was revealed. The experimental results show that the mixed PN-MPS diodes can reduce the forward voltage. The possible reasons were analyzed based on simulation calculations and theoretical explanations. Compared with the JBS diodes, when the forward voltage is applied, the space charge region of the mixed PN-MPS diodes is red...Show More
Based on analyzing of two basic modeling methods of Extended-Range Electric Bus (E_REB), this paper had established a E_REB's Forward-Simulation model, and described main sub models in detail. Basised to the parameters of a certain E_REB, the Forward model was simulated under UDDS driving cycle, and some significant characteristic curves and dynamics, economics simulation data were obtained. Compa...Show More
In this work, modeling and simulation of Photovoltaic (PV) cell and module using an easy and user-friendly software platform of Quite Universal Circuit Simulation (QUCS) is presented. The effect of environment variations in solar radiation and temperature on photovoltaic performance is studied. The accuracy of the proposed model is checked by comparing the simulation results with the experimental ...Show More
A novel emitter-switched thyristor (EST) structure with diode diverter is introduced to obtain superior current saturation characteristics with excellent forward bias SOA (FBSOA) without compromising the on-state voltage drop. The new structure comprises a diode diverter connected to the P-base region of the DC-EST. At low current densities, the structure operates like a floating P-base DC-EST wit...Show More
This paper presents a design method for frequency selective surface (FSS) based on the deep neural network and improved particle swarm algorithm (IPSO). In the proposed method, the forward prediction network (FPN) based on the fully connected network is established to fast predict the transmission coefficient of FSS. Combined with the FPN, the IPSO is used to optimize the structural parameters of ...Show More
Single event transient (SET) pulses produced from heavy ion irradiation in digital integrated circuits (ICs) are modeled and analyzed using a mixed-mode approach, that is, three-dimensional (3-D) semiconductor device simulation coupled with a circuit solver. In this paper, we analyze the factors affecting the generation and propagation of digital SET pulses in fast CMOS ICs. Our mixed-mode simulat...Show More
Microsecond communication has been widely used in various fields of life. At the same time, the problem of electromagnetic interference (EMI), caused by microsecond communication signals, has become more and more serious. In this paper, a simulation research is showed for reducing the electromagnetic interference of microsecond communication signal based on a practical controller. Then, 2 differen...Show More
Multipath transmission has been widely used in vehicle heterogeneous networks. The diversity of interfaces will lead to differences in the characteristics of transmission paths. Different paths also have differences in parameters such as bandwidth and delay. Out of order will result in greatly reduced multipath transmission performance. In this paper, we propose a sustainable forward-delay-based m...Show More
To evaluate the characteristics of the electromagnetic field distribution during a radiated susceptibility test according to ISO 11452–2 a simulation model was developed and validated by measurements. An analysis was made in the frequency range from 200 MHz to 1 GHz using two different antenna types. In particular, the influence of the reference ground plane typically used for automotive tests was...Show More
This paper discusses the modelling and simulation of an EV power train in forward vehicle modelling approach in Simulink. The real-time simulation is an efficient mechanism in EV power train analysis and hardware-in-loop testing of Electronic Control Unit (ECU). This enables ECU software development, calibration and testing in closed loop without the actual vehicle. Due to the developments in proc...Show More