2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)最新文献_第7页

Empirical Modelling of ReRAM Measured Characteristics Using Charge and Flux 利用电荷和通量对ReRAM测量特性进行经验建模

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837658

M. M. A. Chawa, Carol de Benito, H. Castán, S. Dueñas, S. Stavrinides, R. Tetzlaff, R. Picos

引用次数: 0

A novel approximation scheme for floating-point square root and inverse square root for FPGAs 一种新的fpga浮点平方根和反平方根近似格式

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837550

Pietro Pennestri, Yanqiu Huang, Nikolaos S. Alachiotis

{"title":"A novel approximation scheme for floating-point square root and inverse square root for FPGAs","authors":"Pietro Pennestri, Yanqiu Huang, Nikolaos S. Alachiotis","doi":"10.1109/mocast54814.2022.9837550","DOIUrl":"https://doi.org/10.1109/mocast54814.2022.9837550","url":null,"abstract":"Jointly computing the square root (SQRT) and the inverse square root (ISQRT) of floating-point numbers is common in many algorithms, e.g., in image or time series data processing when computing norms or vector normalization. Existing designs suffer from high latency and inefficient resource utilization due to the separate architectures that carry out these two operations. In this paper, we first propose a non-iterative approximation method for computing SQRT and ISQRT based on the Chebyshev min-max criterion to reduce the latency while meeting the accuracy requirements of various applications; thereafter a shared architecture of these two operations is designed and implemented in FPGA with less logic units. In contrast with other approximation solutions, our method does not need to perform any iterations and the accuracy can be mathematically estimated. A comparison with vendor-provided IP cores for FPGAs revealed that our proposed SQRT/ISQRT floating-point IP core utilizes less resources while reducing the clock-cycle latency by nearly four times.","PeriodicalId":122414,"journal":{"name":"2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122376516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Unified UVM Methodology For MPSoC Hardware/Software Functional Verification 用于MPSoC硬件/软件功能验证的统一UVM方法

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837568

Sherif Hosny

引用次数: 0

Genetically-Optimized Electromagnetic Bandgap Structures for Efficient 5G Implementations 高效实现5G的遗传优化电磁带隙结构

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837708

D. Karatzidis, Anestis Apostolidis, S. Amanatiadis, N. Kantartzis

引用次数: 1

A Modified Metal Oxide Memristor Model 一种改进的金属氧化物忆阻器模型

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837519

V. Mladenov, S. Kirilov

引用次数: 2

Design and comparison of passive and active control methods in absorbing torsional vibrations of a vertical drilling string with time delay 有时滞的垂直钻柱扭振被动与主动控制方法的设计与比较

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837757

Baher Pishbahar, H. Moradi

{"title":"Design and comparison of passive and active control methods in absorbing torsional vibrations of a vertical drilling string with time delay","authors":"Baher Pishbahar, H. Moradi","doi":"10.1109/mocast54814.2022.9837757","DOIUrl":"https://doi.org/10.1109/mocast54814.2022.9837757","url":null,"abstract":"In oil drilling systems, vibrations are one of the main sources of economic losses. In this paper, a non-linear continuous model with time delay for the vertical drilling string is proposed to study the torsional vibrations of the drilling string. The Karnopp friction model is used to simulate the stick-slip phenomenon in the interaction between the ground and the drill. In the following, two different methods for reducing torsional vibrations and controlling the stick-slip phenomenon of the drilling string are investigated. In the first method, the effect of changing the system parameters on reducing the torsional vibrations is investigated. In the second method, the torsional vibrations of the drill string are controlled using the pole placement method. In this way, corresponding to the desired response of the system, with the search of parameters space, the appropriate location of the closed-loop poles of the system is found. With the designed control system, it is observed that the torsional vibrations are absorbed and the stick-slip phenomenon is damped.","PeriodicalId":122414,"journal":{"name":"2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"10 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120912550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Performance of Algorithmic Techniques for Optimizing Dual-Band Rectifier 双波段整流器优化算法技术的性能比较

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837645

Maria S. Papadopoulou, A. Boursianis, Argyrios Chatzopoulos, P. Sarigiannidis, S. Nikolaidis, S. Goudos

{"title":"Comparative Performance of Algorithmic Techniques for Optimizing Dual-Band Rectifier","authors":"Maria S. Papadopoulou, A. Boursianis, Argyrios Chatzopoulos, P. Sarigiannidis, S. Nikolaidis, S. Goudos","doi":"10.1109/mocast54814.2022.9837645","DOIUrl":"https://doi.org/10.1109/mocast54814.2022.9837645","url":null,"abstract":"Radio Frequency (RF) energy harvesting (EH) is a technique to replenish the source of wireless sensor networks (WSNs). Also, many interdisciplinary fields in the Internet-of-Things (IoT) era use RF-EH, like precision agriculture, biomedical, and robotics. Over the years, various designs have been presented in the literature operating in multi- or wide-band frequencies. Usually, a designed system is optimized using specific goals and optimization parameters to obtain maximization in power conversion efficiency (PCE). In this work, a dual-band RF rectifier system that resonates in the Wi-Fi frequency bands of 2.45 GHz and 5.8 GHz is presented. The proposed system is optimized using four optimization techniques, namely the Gradient algorithm, the Minimax algorithm, the Simulated Annealing, and the Genetic algorithm. A set of comparative results is presented to assess the performance of each technique and to obtain the feasible solution of the proposed design. Numerical results demonstrate that a 42.8% efficiency is achieved, having a 16 dBm input power and a 1.7 kΩ output resistance load.","PeriodicalId":122414,"journal":{"name":"2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134069344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Designing Application Analysis Tools for Cross-Device Energy Consumption Estimation 设计跨设备能耗估算的应用分析工具

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837632

C. Marantos, Nikolaos Maidonis, D. Soudris

{"title":"Designing Application Analysis Tools for Cross-Device Energy Consumption Estimation","authors":"C. Marantos, Nikolaos Maidonis, D. Soudris","doi":"10.1109/mocast54814.2022.9837632","DOIUrl":"https://doi.org/10.1109/mocast54814.2022.9837632","url":null,"abstract":"Designing green and sustainable IoT applications makes energy consumption a key optimization goal of software development. Modern low-energy devices should be driven by energy-aware software. A promising solution to assist developers in this direction is provided by energy estimation tools. In this article, a method of designing flexible energy estimators is proposed. The introduced solution calculates the expected consumption of programs running on different devices and architectures by using synthetic datasets, the popular Valgrind and Pin profiling tools and the well-established Lasso regressor. In contrast to relevant studies, the emphasis is not on the construction of the most accurate tool, but on the characterization of the correlation between the various metrics (features) and energy consumption, on the comparison between predicting methods and on the construction of practical and easy-to-develop tools. The proposed approach is evaluated using the Polybench benchmark suite in widely used ARM-based systems, achieving an R2 score of 0.96, which is comparable to state-of-the-art approaches.","PeriodicalId":122414,"journal":{"name":"2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123564870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An algorithm for node clustering targeting swarm of cyberphysical systems 面向网络物理系统群的节点聚类算法

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837579

Christos Sad, K. Siozios

引用次数: 0

Design optimization of Aalborg-type transformerless PV inverters with focus on power quality 着眼于电能质量的albborg型无变压器光伏逆变器设计优化

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI: 10.1109/mocast54814.2022.9837575

G. Orfanoudakis, G. Foteinopoulos, E. Koutroulis, Weimin Wu

{"title":"Design optimization of Aalborg-type transformerless PV inverters with focus on power quality","authors":"G. Orfanoudakis, G. Foteinopoulos, E. Koutroulis, Weimin Wu","doi":"10.1109/mocast54814.2022.9837575","DOIUrl":"https://doi.org/10.1109/mocast54814.2022.9837575","url":null,"abstract":"Single-phase transformerless photovoltaic (PV) inverters are based on unconventional power circuit topologies and are required to achieve very high efficiency and power quality over their entire operating range. Optimization techniques applied to conventional converter topologies need to be extended to cover these requirements. This paper proposes a PV inverter design optimization method for Aalborg-type transformerless PV inverters which integrates simulations in an optimization algorithm to maximize the inverter European efficiency, while abiding by the power quality limits set by relevant standards. According to it, the entire PV system, including the PV array, the PV inverter with its controller, and the grid are simulated in MATLAB-Simulink to estimate the inverter losses and output current distortion for design alternatives devised by the optimization algorithm. Design results obtained on an Aalborg-type transformerless PV inverter, indicate that its European efficiency can be maximized under different sets of constraints, while maintaining permissible output current quality at all power levels.","PeriodicalId":122414,"journal":{"name":"2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126185292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0