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2021 29th Iranian Conference on Electrical Engineering (ICEE)最新文献

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User Management in Cell-Free Massive MIMO Systems with Limited Fronthaul Capacity 有限前传容量无小区大规模MIMO系统中的用户管理
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544413
Siminfar Samakoush Galougah, H. Masoumi, M. Emadi
{"title":"User Management in Cell-Free Massive MIMO Systems with Limited Fronthaul Capacity","authors":"Siminfar Samakoush Galougah, H. Masoumi, M. Emadi","doi":"10.1109/ICEE52715.2021.9544413","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544413","url":null,"abstract":"In cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture, large number of access points (APs) collaboratively serve much smaller number of users. Conventionally, it is assumed that each AP serves all users. In this work, however, to lessen the computational and hardware costs, instead of serving all users, each AP serves limited number of them. We propose an algorithm for assigning users to each AP. Besides, we assume each AP is connected to a central processing unit (CPU) via limited capacity fronthaul link. To efficiently address the fronthaul capacity constraints, three strategies for sending signals from APs to the CPU are employed; namely: compress-forward-estimate (CFE), estimate-compress-forward (ECF), and estimate-multiply compress-forward (EMCF). We drive the capacity of the aforementioned systems with user management constraint. It is shown that the proposed user management improves the performance of the ECF and EMCF from both sum spectral efficiency (SE) and per user SE aspects.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121259343","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
Stability Analysis of Distributed-Order Systems: a Lyapunov Scheme 分布阶系统的稳定性分析:一个Lyapunov格式
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544282
Vahid Badri
{"title":"Stability Analysis of Distributed-Order Systems: a Lyapunov Scheme","authors":"Vahid Badri","doi":"10.1109/ICEE52715.2021.9544282","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544282","url":null,"abstract":"This paper introduces a novel Lyapunov-based method for stability analysis of distributed-order systems with different fractional-order weight functions in their pseudo-states' dynamics and in the presence of time-delay. First, stability analysis of the integer-order counterparts of the distributed order systems are considered. Under some circumstances, the proposed stability analysis method is extended for distributed-order systems. The proposed method is not limited to the distributed-order ordinary differential equations and can be applied to the distributed-order partial differential equations, too. In fact, the proposed stability analysis method links stability of distributed-order systems to the stability of their integer-order counterparts. Evaluation of the above-mentioned achievements are done by two numerical examples.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123792286","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
Efficient and Fast Analysis of SIW Microwave Devices Using the Multiple Multipole Technique 利用多重多极技术对SIW微波器件进行高效快速分析
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544318
Ahmad Bakhtafrouz, Mohammad Moemenian, M. Maddahali, Mohsen Karimian Kakolaki
{"title":"Efficient and Fast Analysis of SIW Microwave Devices Using the Multiple Multipole Technique","authors":"Ahmad Bakhtafrouz, Mohammad Moemenian, M. Maddahali, Mohsen Karimian Kakolaki","doi":"10.1109/ICEE52715.2021.9544318","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544318","url":null,"abstract":"An efficient and fast two-dimensional method is presented using multiple multipole program (MMP). The proposed method is applied to analyze two different substrate integrated waveguide structures. A two-port post filter and a three-port power divider are studied and the results show an excellent agreement with the commercial software results. It can be seen that our method is 4.7 times faster for SIW post-filter and 7.9 times faster for power divider than the commercial software.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125537272","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
A Novel Step-up Converter Based on Active Network and Coupled-Inductor Technique with Soft Switching Operation 一种基于有源网络和软开关耦合电感技术的新型升压变换器
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544340
Mohammadreza Zeynalhosseyni, R. Beiranvand
{"title":"A Novel Step-up Converter Based on Active Network and Coupled-Inductor Technique with Soft Switching Operation","authors":"Mohammadreza Zeynalhosseyni, R. Beiranvand","doi":"10.1109/ICEE52715.2021.9544340","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544340","url":null,"abstract":"Step-up converters having high voltage gain are one of the essential parts of renewable energy systems. Because the renewable energy systems' output voltage is low, dc-dc converters are generally utilized to produce high output voltage for industrial applications. There are many structures for boosting voltage, such as switched-capacitor (SC) or switched-inductor converters and using transformers. However, each of these converters has some drawbacks, such as high current or voltage spikes on power switches or diodes, transformer leakage inductances, and low efficiency. Combining the coupled-inductors and clamp circuits is a suitable solution to overcome high current and voltage spikes caused by stray inductances. This paper proposes a new soft-switching step-up converter based on an active network and coupled-inductor technique. Zero voltage switching (ZVS) of the main power MOSFETs reduce switching losses and EMI noises and increases the converter efficiency. Consequently, high switching frequency operation is possible to achieve high level of power density. The converter is simulated for wide output power (100 W-1 kW) and wide input voltage (40 V -100 V) to regulate the 400 V output voltage.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"185 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115035222","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
Estimation of the Arc Model Parameters Using Heuristic Optimization Methods 基于启发式优化方法的电弧模型参数估计
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544132
Sadegh Ghavami, A. Razi-Kazemi, K. Niayesh
{"title":"Estimation of the Arc Model Parameters Using Heuristic Optimization Methods","authors":"Sadegh Ghavami, A. Razi-Kazemi, K. Niayesh","doi":"10.1109/ICEE52715.2021.9544132","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544132","url":null,"abstract":"The black box arc model is a valuable tool to describe the switching during the arcing time in AC and DC circuit breakers. It can provide an efficient approach to integrate the arc model in the network for investigating the interaction between arc and network. However, the reliable determination of arc model parameters based on the voltage and current waveforms is a challenging issue. This paper presents an estimation approach to the arc parameters based on the linear and nonlinear description of the Mayr arc model concerning the sinusoidal and non-sinusoidal current waveforms. Accordingly, Heuristic optimization methods such as Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) have been used to assess the algorithms and for evaluating the parameters of arc models.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129005982","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
Anomaly Detection in Urban Water Distribution Grids Using Fog Computing Architecture 基于雾计算架构的城市配水管网异常检测
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544486
Sara Mirzaie, MohammadReza AvazAghaei, O. Bushehrian
{"title":"Anomaly Detection in Urban Water Distribution Grids Using Fog Computing Architecture","authors":"Sara Mirzaie, MohammadReza AvazAghaei, O. Bushehrian","doi":"10.1109/ICEE52715.2021.9544486","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544486","url":null,"abstract":"Efficient monitoring and quick feedback control are the main requirements of smart cities to guarantee the stability and safety of urban infrastructures. Real-time monitoring in order to detect anomalies can lead to the data intensive processing requires a new computing scheme to offer large-scale and low latency services. Fog architecture by extending computing to the edge of network, provides the ability to accurate and fast detection of abnormal patterns. The hierarchical fog computing architecture and the efficient hyperellipsoidal clustering algorithm presented in the previous studies have been applied in this paper to identify anomalous behaviors in water distribution grids. We created an urban water distribution grid dataset using Epanet2w simulator software by recording grid measured features as (pressure and head) for several scenarios. To evaluate the effect of applying the hierarchical anomaly detection model, we implemented the data and computing nodes at different layers by docker containers. The evaluation results proved the effectiveness of the hierarchical anomaly detection model in significant reduction of the communication latency, while preserving the detection accuracy compared to the centralized scheme.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121428761","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: 2
Design and Analysis of a New Hybrid Three-Phase Multilevel Inverter with Improved Specifications 改进的新型混合型三相多电平逆变器的设计与分析
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544150
Hossein Jafari, D. Nazarpour, S. Golshannavaz, E. Babaei
{"title":"Design and Analysis of a New Hybrid Three-Phase Multilevel Inverter with Improved Specifications","authors":"Hossein Jafari, D. Nazarpour, S. Golshannavaz, E. Babaei","doi":"10.1109/ICEE52715.2021.9544150","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544150","url":null,"abstract":"In this paper, a new three-phase circuit for multilevel inverters with symmetrical input sources is presented. The suggested inverter consists of three parts. The basic circuit, auxiliary circuit, and H-bridge are the components that make up the proposed circuit. For this reason, the suggested circuit is called a hybrid inverter. The reason for exploiting the auxiliary circuit and H-bridge is the low production voltage levels by the basic circuit. There are no capacitors and diodes in this circuit and it has a simple and cheap control system. To generate the multilevel output voltage in this inverter, the LS-PWM control method is utilized. The proposed circuit is compared in terms of the number of the utilized elements for the same number of levels, which are satisfactory comparison results. Finally, the simulation results in MATLAB/Simulink software are given to confirm the inverter performance.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116207303","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
Bit Error Rate Improvement in Optical Camera Communication Based on RGB LED 基于RGB LED的光学摄像机通信误码率改进
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544287
Farzaneh Norouzi, S. Olyaee, Mehran Mehraban Rad
{"title":"Bit Error Rate Improvement in Optical Camera Communication Based on RGB LED","authors":"Farzaneh Norouzi, S. Olyaee, Mehran Mehraban Rad","doi":"10.1109/ICEE52715.2021.9544287","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544287","url":null,"abstract":"Power efficiency and ability to high-speed modulation enables LEDs to transmit data in optical wireless communications. Optical camera communication (OCC) is a special type of VLC in which imaging sensor is using as a receiver instead of photodetector. Some challenges of such systems are the low data transmission rate and the light flickering. Recently under-sampled modulations are developed. In this paper to overcome flickering issue, we used one of undersampled modulation named UPSOOK which enable us to modulate data with a frequency many times higher than the frame rate. Due to the presence of color filters in these sensors, the data transmission rate in OCC systems can be increased by using RGB LED and WDM. On the other hand, using windowing method to find optimum region for data detection, bit error rate (BER) decreased.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"535 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114001776","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
Machine Learning Approach for Retrieval of Complex Permittivity in Cavity Resonators 腔腔谐振器复介电常数检索的机器学习方法
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544112
Kianoosh Kazemi, G. Moradi
{"title":"Machine Learning Approach for Retrieval of Complex Permittivity in Cavity Resonators","authors":"Kianoosh Kazemi, G. Moradi","doi":"10.1109/ICEE52715.2021.9544112","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544112","url":null,"abstract":"This work presents a novel microwave sensor that is specially designed for retrieval of complex permittivity. The operating frequency range of the sensor is C band (4.54 GHz) and a tapered feeding topology is implemented to achieve a higher quality factor and coupling. The sensor is equipped with multiple techniques such as Photonic Band Gap, Slow-Wave vias, which enhances the sensitivity significantly. These techniques increase the interaction between the material under test and the electric field. By utilizing slow-wave via, a miniaturization of 35% is achieved. Due to the reduction in size and increasing the sensitivity, these two methods introduce a new possibility and application for sensor design. The values of complex permittivities are extracted from S-parameters obtained from simulation of the structure in CST Microwave Studio (MWS) using a Machine Learning approaches.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127699315","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
Evanescent-to-Propagating Wave Conversion Using Continuous High-Order Dielectric Metasurfaces 利用连续高阶介电超表面的倏逝-传播波转换
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544456
Hamid Akbari Chelaresi, Pooria Salami, L. Yousefi
{"title":"Evanescent-to-Propagating Wave Conversion Using Continuous High-Order Dielectric Metasurfaces","authors":"Hamid Akbari Chelaresi, Pooria Salami, L. Yousefi","doi":"10.1109/ICEE52715.2021.9544456","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544456","url":null,"abstract":"Here, we design continuous higher-order dielectric metasurfaces to convert evanescent waves with large transverse wavenumbers into propagating ones. The dielectric nature of the designed metasurfaces and their operation in higher order modes reduce loss and significantly improve resolution in metasurface-based sub-wavelength imaging techniques.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115901487","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
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