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Midwest Symposium on Circuits and systems (MWSCAS)

作者： A.A. Hiasat H. Abdel-Aty-Zohdy Electronics Engineering Department Royal Scientific Society Princess Sumaya University for Technology Amman Jordan Microelectronics System Desigh Laboratory Electrical and Systems Engineering Oakland University Rochester MI USA

The design of Residue Number system (RNS) multipliers has received considerable attention in the last few years. This paper presents a new approach for designing modular multipliers using a combinational logic technique. The idea is based on constructing a truth table whose inputs are the bits of the multiplicand and the multiplier. The outputs are the bits of the modular product. Realizing any minimized Boolean function is achieved using two levels of gates. Compared to most recent developed approach, our new technique requires less integrated circuit area and operates at a higher speed.

关键词： Minimization methods Zinc

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An efficient hybrid scheduling scheme for impatience user in eMBMS over LTE

An efficient hybrid scheduling scheme for impatience user in...

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International Conference on Computer Communication and Informatics (ICCCI)

作者： Rochak Sachan Navrati Saxena Abhishek Roy Department of Electrical and Computer Engineering Sungkyunkwan University Suwon South Korea System Design Laboratory Telecom Systems Division Samsung Electronics Suwon South Korea

ISBN: (纸本)9781467329064

The 3 rd Generation Partnership Project - Long Term Evolution (3GPP-LTE) is the best choice for multimedia data transmission in demanding situation. The 3GPP LTE provides high data transmission rate between the User Equipment (UE) and Evolved Node B (eNB) with lower latency and better throughput. However, with the advancement and increasing traffic of data load, it is necessary to have data scheduling with user requests. In real life situations, mobile users become impatient when they don't receive their desired data. Moreover, the LTE Enhanced Multimedia Broadcast Multicast Services (eMBMS) does not provide any type of scheduling to measure and manage the impatient user request in multimedia broadcasting scenario. So, we consider this situation in our proposed scheme and simulated a new type of hybrid scheduling scheme to overcome this problem. It also takes care of the server anomalies arising from multiple requests sent by the same user for the same data.

关键词： Optimal scheduling Multimedia communication Quality of service Data communication Computers Servers Informatics

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Efficient test generation for built-in self-test boundary-scan template

Efficient test generation for built-in self-test boundary-sc...

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VLSI Test Symposium

作者： P. Nagvajara M.G. Karpovsky L.B. Levitin Department of Electrical and Computer Engineering Drexel University Philadelphia PA USA Research Laboratory for Design and Testing of Computer and Communication Systems Department of Electrical Computer and System Engineering Boston University Boston MA USA

An analysis and design of a pseudorandom pattern generator, (PRPG), based on a linear recurrence, for built-in self-test (BIST) boundary scan design is presented. The authors present for the case when r>or=s, a design of an s-stage PRPG capable of producing 2/sup s/-1 distinct r-bit patterns within 2/sup s/-1 clock pulses independent of the hardware realization of the PRPG. For the case when r >

关键词： Automatic testing Built-in self-test Circuit testing Clocks Test pattern generators Pulse generation Pattern analysis Laboratories system testing design engineering

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Novel Radio Frequency Energy Harvesting model

Novel Radio Frequency Energy Harvesting model

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International Power engineering and Optimization Conference (PEOCO)

作者： Hossam Mahmoud Gamal ElDin Mohammed ElAnzeery Mohamed Abd ElAziz Saad ElBagouri Rafik Guindi Department of Microelectronics System Design Nanoelectronics Integrated Systems Center Nile University Cairo Egypt Department of Electrical & Electronics Engineering University of Technology PETRONAS Bandar Seri Iskandar Tronoh Perak Malaysia

Energy and Environment, both are the main concern for every researcher allover the world. Alternative energy sources that are environmental friendly became the challenge to satisfy world needs. Oil and Gas are no more the main source of Energy, consequently the demand of an everlasting cheap source of energy that is environmental friendly, is the main goal recently. During the last decade, power consumption has decreased opening the field for energy harvesting to become a real time solution for providing different sources of electrical power. Energy Harvesting is a new technology that is going to make a revolution in the coming decade. Energy Harvesting is a technique to provide alternative sources of energy that are environmental friendly and low in cost. Future applications need wireless devices to operate for longer durations away from centralized power sources or the amount of power that can be supplied to these wireless devices to be increased. Currently, many technologies have been developed that attempt to overcome the limitations imposed on wireless devices. Radio Frequency Energy Harvesting is one of these types of energy harvesting that is able to convert Radio Frequency waves from ambient air to electrical energy. This paper presents a model for harvesting radio frequency energy waves. The presented model is directed towards different applications and targeting mainly Radio Frequency Identification (RFID) applications, where it works on frequencies in the range of 2.1 - 2.45 GHz. The recommended model faces size and efficiency problems presenting a very small radio frequency energy-harvesting model that can be implemented easily inside Radio Frequency Identification (RFID) applications. A final model for Radio Frequency Energy Harvesting is proposed based on different types of simulations and experiments.

关键词： Radiofrequency identification Energy harvesting Wireless sensor networks Schottky diodes Wireless communication Antennas Capacitors

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Bio-Inspired Integrated Chips for Telecommunications S/W Defect-Tracking

Bio-Inspired Integrated Chips for Telecommunications S/W Def...

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IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

作者： Hoda S Abdel-Aty-Zohdy Mostafa Hashem Sherif Adam Smiarowski Brian Searing WPAFB/RITA Air Force Research Laboratory OH USA Microelectronics System Design Lab Electrical and Computer Engineering Department Oakland University Rochester MI USA Middletown NJ USA

Defect tracking is important in evaluating the reliability of the software used in telecommunication networks. Bio-inspired integrated approaches and embedded chips have been developed and implemented to track improvements in the software reliability. In this paper, the integrated model for the failure discovery during testing is combined with bio-inspired approaches using the recurrent dynamic neural network (RDNN) with parametric adjustments and wavelets as basis; and the adaptive parameters RDNN (ARDNN) where the criterion is to minimize the error in failure intensity estimation, subject to the model constraints. Simulation results favor our adaptive recurrent dynamic neural network, with reduced error from 88% to 1.25 –to- 8% based on the number of iterations in the training phase.. The ARDNN approach provides optimum solution to the dynamic problem at hand since it iterates on the shape of the wavelet basis and provide adequate recovery of the data in the form of piecewise linear differential.

关键词： Software testing Neural networks Telecommunication network reliability Recurrent neural networks Genetic algorithms Parameter estimation Biomedical signal processing Information technology microelectronics Computer networks

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Implementation aspects of turbo-decoders for future radio applications

Implementation aspects of turbo-decoders for future radio ap...

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IEEE Conference on Vehicular Technology (VTC)

作者： F. Berens A. Worm H. Michel N. Wehn Advanced System Technology Geneva Applications Laboratory ST Microelectronics N.V. Geneva Switzerland Department of Electrical Engineering Institute of Microelectronic Systems University of Kaiserslautern Kaiserslautern Germany

Turbo codes will most likely be employed in future radio systems as a channel coding scheme for high-rate data services. However, turbo decoding is a comparatively complex task. To obtain efficient decoder implementations, the system design space has to be explored on multiple levels. In this paper, we span the system design space for turbo codes and describe a method of exploration, while focusing on the implementation-dependent part. The design decisions taken during exploration are rated regarding complexity, throughput and power consumption. The second part of our paper evaluates sample software and hardware implementations of a 2 Mbit/s turbo decoder.

关键词： Iterative decoding Turbo codes Hardware Viterbi algorithm Space technology Throughput Energy consumption Convolutional codes Iterative algorithms Computer architecture

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Development of a 6-axis robotic arm controller implemented on a low-cost microcontroller

Development of a 6-axis robotic arm controller implemented o...

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International Conference on electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON

作者： Agus Bejo Wanchalerm Pora Hiroaki Kunieda Embedded System and IC Design Research Laboratory Department of Electrical Engineering Faculty of Engineering Chulalongkom University Thailand Kunieda-Isshiki Laboratory Department of Communication and Integrated Systems Graduate School of Science and Engineering Tokyo Institute of Technology Japan

This paper presents a case study of development of a 6-axis robotic arm controller. The robot is powered by a hydraulic pump. The position of each axis can be derived from its potentiometer voltage. At each and every axis, a servo-valve is employed to control a servo motor. Its relative velocity is related to the servo-valve input. With 2 nd order PID controller, a micro-controller commands movements of all axes. The PID inputs are the six voltages from potentiometers and its outputs are the six DC voltages, which command the six servo-valves. A trajectory file is generated by solving the inverse kinematics problem with some (angular to digital value) conversions. A special case; closed-form calculation is developed to solve kinematics problem. With some constraints it only yields one solution. Experiments show that robot follow the given trajectory with acceptable errors.

关键词： Robot control Microcontrollers Robot kinematics Control systems Potentiometers Communication system control Voltage Servomechanisms Servomotors Service robots

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Physical design of RISC-V based system-on-Chip using OpenLane

Physical Design of RISC-V based System-on-Chip using OpenLan...

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IEEE Asia-Pacific Conference on Circuits and systems

作者： Muhammad Fauzan Raihan Fadhil Yanuarsyah Muhammad Hanif Hibatullah Radithya Arisaputra Infall Syafalni Nana Sutisna Trio Adiono Makoto Ikeda School of Electrical Engineering and Informatics Bandung Institute of Technology Indonesia University Center of Excellence on Microelectronics Indonesia System Design Laboratory School of Engineering The University of Tokyo Tokyo Japan Graduate School of Engineering The University of Tokyo Tokyo Japan

ISBN: (数字)9798350378771

ISBN: (纸本)9798350378788

Open-source tools for designing integrated circuits are crucial for electrical engineering students. However, more references are necessary to promote the tools to the academic environments. This paper presents design and implementation of a PicoSoC (Pico system-on-Chip) using the OpenLane automated VLSI flow. The PicoSoC comprises several modules, including the PicoRV32 CPU, UART and SPI peripherals, and memory blocks. The design methodology encompasses RTL simulation, macro hardening, core hardening, full-chip hardening, and gatelevel simulation. The results indicate successful physical design and functional verification, demonstrating that the gate-level simulation outputs align with those from RTL simulation. The work is useful for designing the physical layout of digital circuits, SoC architecture development, and also promoting open-source IC design tools in academic environments.

关键词： Layout Logic gates Very large scale integration system-on-chip design tools Central Processing Unit Pins Hardware design languages Digital circuits Physical design

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P-10.2: design and Simulation of Integrated Ultraviolet HEMT-LED enabled by P-GaN Selective Epitaxy Growth

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SID Symposium Digest of Technical Papers 2023年第S1期54卷 789-791页

作者： Jingyang Zhang Wei Huang Zhaojun Liu Department of electronic and electrical engineering Southern University of Science and Technology Shenzhen Guangdong China 518055 A State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics & Systems School of Microelectronics Fudan University Shanghai China 200433

Based on previous work, the ultraviolet HEMT-LED we fabricated by selective epitaxy growth, this paper further performed simulation to explore the most appropriate p-GaN selection size. P-GaN grown by Selective Epitaxy Growth (SEG) can not only be employed as a junction termination to reduce the electric field crowding of the gate of HEMT, but also form an active region by contacting with 2-dimentional electron gas (2DEG). The simulation results provide an effective reference for the design of p-GaN grown by SEG, and further pave the way for the realization of the idea of integration through the selection of growth methods.

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Optimized low-power thermal stepper system for harsh and inaccessible environments

Optimized low-power thermal stepper system for harsh and ina...

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Annual Conference of Industrial Electronics Society

作者： Ruimin Yang Jeroen van Schieveen Stoyan Nihtianov Jo Spronck Faculty of Electrical Engineering Department of Microelectronics Electronic Instrumentation Laboratory Delft University of Technnology Delft Netherlands Faculty of 3mE Department of Precision and Microsystem Engineering Mechatronic System Design Delft University of Technnology Delft Netherlands

This article presents an optimized thermal stepper system which is used to align the critical parts of high-performance smart sensors, such as capacitive sensors. In order to apply the system in harsh and inaccessible industrial environments, improvements have been made, such as reduced power consumption (1mW during measurement mode), increased alignment accuracy (within 0.1um), increased interconnect reliability, and better immunity to external interferences. Experimental results are shown which demonstrate the improved performance of the thermal stepper system.

关键词： Temperature measurement Capacitive sensors Accuracy Power demand Heating

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