2013 21st Iranian Conference on Electrical Engineering (ICEE)最新文献_第3页

Optimal sectionalizing switches and DG placement considering critical system condition 考虑关键系统状态的最佳分段开关和DG布置

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599560

M. Nematollahi, M. Tadayon

引用次数: 5

Beamforming algorithms for multiuser MIMO uplink systems: Parallel and serial approaches 多用户MIMO上行系统的波束形成算法:并行和串行方法

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599748

S. Tabatabaee, H. Zamiri-Jafarian

{"title":"Beamforming algorithms for multiuser MIMO uplink systems: Parallel and serial approaches","authors":"S. Tabatabaee, H. Zamiri-Jafarian","doi":"10.1109/IRANIANCEE.2013.6599748","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2013.6599748","url":null,"abstract":"Joint transmitter and receiver beamforming algorithms for uplink multiuser multi-input multi-output (MIMO) communication systems are proposed in this paper based on maximizing an utility function, which is defined based on the difference between desired signal power and interference plus noise power. Two iterative beamforming algorithms are developed by maximizing the utility function of each user via parallel and serial methods. In parallel method, the transmitter and receiver beamforming vectors of each user are iteratively updated by maximizing its utility function. However in serial method, at first step, the transmitter beamforming vectors of all users are iteratively updated by maximizing the utility function of each user and then receiver beamforming vectors of users are calculated. By computer simulations, the performances of the proposed beamforming algorithms are evaluated and also compared with the performance of the duality method (DM) based beamforming algorithm. With respect to bit error rate (BER) and convergence rate, the results show that the new proposed beamforming algorithms have superior performances in comparison with the DM based beamforming algorithm. Also, for some cases, the serial method achieves better performances in comparison with the parallel method.","PeriodicalId":383315,"journal":{"name":"2013 21st Iranian Conference on Electrical Engineering (ICEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129033345","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: 9

Modelling place field formation in hippocampus considering recurrent connections in CA3 and STDP 考虑CA3和STDP循环连接的海马位置场形成模型

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599823

Shiva Farashahi, F. Bahrami

引用次数: 1

Internet traffic classification using MOEA and online refinement in voting on ensemble methods 基于MOEA的互联网流量分类和基于集合投票的在线细化方法

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599818

M. S. Aliakbarian, A. Fanian

{"title":"Internet traffic classification using MOEA and online refinement in voting on ensemble methods","authors":"M. S. Aliakbarian, A. Fanian","doi":"10.1109/IRANIANCEE.2013.6599818","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2013.6599818","url":null,"abstract":"Internet Traffic Classification is one of the most important issues in network management. Until now, many methods have been proposed to this end, but studies show that machine learning based algorithms have a good performance in comparison to other methods. Selecting the best feature subset causes better accuracy and efficiency in machine learning algorithms. In this paper, in order to obtain higher classification accuracy, effective features are selected using a multi-objective evolutionary algorithm. In this evolutionary algorithm, some objectives such as minimizing feature number, maximizing classification accuracy, maximizing true positive rate (maximizing TPR), and minimizing false positive rate (minimizing FPR) are satisfied simultaneously and with no conflicts with each other. In the proposed method, selected features subset is given to a new ensemble algorithm with online refinement during training and testing phases. Final result of each new ensemble algorithm is obtained by the vote of the majority with respect to the accuracy of any voter. Results show the high efficiency and performance of proposed method in comparison with other methods. So that the WWW traffic classification accuracy ascend to 99.93%. The results for 8 other traffics such as P2P indicate high accuracy of the proposed method.","PeriodicalId":383315,"journal":{"name":"2013 21st Iranian Conference on Electrical Engineering (ICEE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129454020","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: 3

Optimal directional relay placement in microgrids considering coordination constraints 考虑协调约束的微电网定向继电器优化配置

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599675

B. Salehi, M. Tadayon, H. Karshenas

{"title":"Optimal directional relay placement in microgrids considering coordination constraints","authors":"B. Salehi, M. Tadayon, H. Karshenas","doi":"10.1109/IRANIANCEE.2013.6599675","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2013.6599675","url":null,"abstract":"This paper is concerned with the optimal placement of protection devices in a microgrid (MG) using genetic algorithms. The occurrence of power outages in distribution networks is higher than that of other parts of the grid. This phenomenon may impose substantial damage on customers with sensitive loads. The new concepts of distributed generation (DG) and microgrid (MG) in modern distribution systems can reduce the number of outages and associated damages by supplying a feeder from multiple sources. However, microgrids and distribution networks with DG require significant effort for the coordination of DGs and their protection devices. Therefore, the placement of protective equipment in order to limit the scope of the fault is one of the important issues which power engineers face. Adding DGs to a distribution system creates different sets of operating conditions such as reverse power flow and increased fault levels. In this paper, using the graph theory, various branches of a feeder are identified and the constraints for using genetic algorithm to optimize the location of protective equipment are derived. In the proposed algorithm, the location, type and direction of relays are optimized simultaneously. The results of implementing the proposed approach on a 33-bus test network confirm the performance and accuracy of this method.","PeriodicalId":383315,"journal":{"name":"2013 21st Iranian Conference on Electrical Engineering (ICEE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129106689","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

Modelling and analysis of quadruped walking robot using singular system theory 基于奇异系统理论的四足步行机器人建模与分析

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599739

M. Sadati, M. Hosseinzadeh, M. Shafiee

引用次数: 3

Generalized formulation for optimal placement of PMUs considering single unit or single branch outage 考虑单机组或单支路停机的pmu优化布置的广义公式

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599802

Nima Amin, M. Banejad

{"title":"Generalized formulation for optimal placement of PMUs considering single unit or single branch outage","authors":"Nima Amin, M. Banejad","doi":"10.1109/IRANIANCEE.2013.6599802","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2013.6599802","url":null,"abstract":"Phasor Measurement Units (PMUs) are being considered as the essential tools in modern power system studies. In this paper a general approach is proposed to place the PMUs optimally in a power system and minimize the total installation cost to make the entire system completely observable. In this paper, the placement of PMUs is performed with respect to the maximum measurement redundancy, considering both cases of single PMU loss or single branch outages as just one problem. The proposed approach employs Binary Integer Linear Programming (BILP) to formulate the objective function. In order to consider more practical assumptions, with and without considering of zero injections buses, this method does not utilize the existing conventional measurement units in the power network. In addition, to show the effect of unequal PMU installation in each bus, modified cost matrix is added to the problem. The proposed approach is then applied to several standard IEEE test systems (14-bus, 30-bus and 57-bus) to find the optimal placement of the PMUs. The simulation results approve the capability of the proposed method in finding the optimal place of the PMUs with minimizing the installation cost.","PeriodicalId":383315,"journal":{"name":"2013 21st Iranian Conference on Electrical Engineering (ICEE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121284918","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: 8

Introducing a new multimodal database from twins' biometric traits 介绍了一种基于双胞胎生物特征的多模态数据库

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599528

Hamid Behravan, K. Faez

引用次数: 15

Fabrication and characterization of polyaniline based Schottky diode 聚苯胺基肖特基二极管的制备与表征

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599532

A. Hajibadali, M. B. Nejhad, G. Farzi, H. H. Rad

引用次数: 4

A compact directional super-wideband antenna 一种紧凑的定向超宽带天线

2013 21st Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2013-05-14 DOI: 10.1109/IRANIANCEE.2013.6599667

H. Bernety, B. Zakeri, R. Gholami

引用次数: 7