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Security and Privacy Smart Contract Architecture for Energy Trading based on Blockchains 基于区块链的能源交易安全与隐私智能合约架构
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544155
M. Nazari, S. Khorsandi, Jaber Babaki
{"title":"Security and Privacy Smart Contract Architecture for Energy Trading based on Blockchains","authors":"M. Nazari, S. Khorsandi, Jaber Babaki","doi":"10.1109/ICEE52715.2021.9544155","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544155","url":null,"abstract":"Nowaday, centralized smart grid systems encounter many challenges to peer-to-peer (P2P) energy trading, such as communications overhead, security, and privacy issues. Blockchain-based energy trading has been proposed as a possible solution to the above problems. This paper proposes a secure and automated blockchain-based framework that allows energy producers and consumers to conduct energy trade without intermediate entity interaction. Smart contracts have been established to automate the energy trade based on an agreement energy-relevant both from the supply and demand sides without third parties. In a smart contract, if all transactions are successful, the energy trade will take place. We used the Solidity programming language and Metamask wallet to create the smart contract. Then, smart contract implementation results in the Ropsten blockchain network are tested and compared with related works. According to the analysis, the proposed framework has enhanced security and privacy.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"36 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":"117147123","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
A Novel Model for Backcasting the Environmental Sustainability in Iran's Electricity Supply Mix 伊朗电力供应结构中环境可持续性的新模型
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544346
M. Atabaki, Mohammad Mohammadi
{"title":"A Novel Model for Backcasting the Environmental Sustainability in Iran's Electricity Supply Mix","authors":"M. Atabaki, Mohammad Mohammadi","doi":"10.1109/ICEE52715.2021.9544346","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544346","url":null,"abstract":"Electricity supply planning is a tangled problem, especially in the era of day-to-day development in power generation technologies that each of which has its own specific technical and economic characteristics. Taking environmental aspects into consideration makes the issue even more complicated. Therefore, developing new efficient approaches to deal with this problem is of crucial importance. This paper proposes a model for backcasting the environmental sustainability in the power supply mix. The suggested model combines a genetic algorithm, a linear programming model, and an AHP-TOPSIS method. The model is used to analyze Iran's power sector. The results show that solar PV and wind turbine are two promising technologies for Iran's long-term power demand. The results also indicate that the environmentally sustainable plan would give rise to a reduction in per unit CO2and SO2emissions, as well as water usage, but it would cause an increase in land requirement. The findings reveal that to keep CO2emissions decreasing trend in the long-run, it is essential to expand the potential capacity of renew ables.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"353 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113958620","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 Low-Power Subthreshold Level Shifter in 180 nm Process 180nm制程低功耗亚阈值电平移位器
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544459
Z. Ghasemzadeh, M. Saberi
{"title":"A Low-Power Subthreshold Level Shifter in 180 nm Process","authors":"Z. Ghasemzadeh, M. Saberi","doi":"10.1109/ICEE52715.2021.9544459","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544459","url":null,"abstract":"This paper proposes a power-efficient voltage level shifter architecture that is able to operate in the sub-threshold region. To avoid the static power dissipation, the proposed structure employs an auxiliary circuit to charge the internal nodes up to $V_{DDH}$. Moreover, the strength of the pull-down device is increased with the aid of a second auxiliary circuit. Post-layout simulation results of the proposed structure in a $0.18-mu mathrm{m}$ CMOC technology show that at the input low supply voltage of $mathrm{V}_{text{DDL}}=0.3 mathrm{V}$ and the high supply voltage of $mathrm{V}_{text{DDH}}=1.8 mathrm{V}$, the level shifter presents a propagation delay of 46 ns, a static power dissipation of 230 pW, and an energy per transition of 84 fJ, when the frequency of the input signal is 1 MHz.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"80 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":"124114307","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
Shielding factor enhancement method for Bi-stage active shield in SQUID-based Magnetocardiography system 基于squid的心脏磁图系统双级主动屏蔽屏蔽因子增强方法
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544217
Zeynab Alipour, F. Esmaeili, F. Shanehsazzadeh, M. Fardmanesh
{"title":"Shielding factor enhancement method for Bi-stage active shield in SQUID-based Magnetocardiography system","authors":"Zeynab Alipour, F. Esmaeili, F. Shanehsazzadeh, M. Fardmanesh","doi":"10.1109/ICEE52715.2021.9544217","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544217","url":null,"abstract":"We proposed a simple method to enhance shielding factor of our previously proposed bi-stage active shield system employed in a SQUID-based magnetocardiography system. The additional proposed design is optimized for canceling the power-line magnetic interference field to provide a calmer magnetic environment for the bi-stage active shield. A 50 Hz cancellation coil is placed around the bi-stage shielding system which includes inner and outer coils designed for compensating low-frequency (0-0.1Hz) and high-frequency (0.1-100Hz) environmental magnetic noise, respectively. In this configuration, a SQUID magnetometer is located at the center of these coils. Considering that the power-line interference is far-field, a coil-based sensor was placed on top of the liquid nitrogen Dewar which contains the SQUID magnetometer. The coil-based sensor is aligned with the SQUID sensing washer area vertically. Using optimized controlling circuits, the sensor measures the power-line magnetic interference field and feeds the measured signal to the 50 Hz cancellation coil. Although this configuration is optimized to reduce the power-line interferences, it also causes lower magnetic noise level at low-frequency range which is interpreted to be caused by decreasing flux trapping probability in the SQUID magnetometer. The designed 50Hz cancellation system has shielding factors of about 23 dB at 50Hz and 19 dB at 1Hz.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"26 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":"125156925","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
On the Design of Highly Efficient Harmonic Tuned Wideband Class F-1/F Power Amplifier 高效谐波调谐宽带F-1/F类功率放大器的设计
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544239
M. R. Zeinali, Amir Hossein Aalipour, H. Shamsi
{"title":"On the Design of Highly Efficient Harmonic Tuned Wideband Class F-1/F Power Amplifier","authors":"M. R. Zeinali, Amir Hossein Aalipour, H. Shamsi","doi":"10.1109/ICEE52715.2021.9544239","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544239","url":null,"abstract":"A novel methodology to design a highly efficient wideband Class F-1/F power amplifier using GaN HEMT is presented in this paper. The P A operates in Class F−1in lower half band and Class $F$ in higher half band, achieving the overall bandwidth in the frequency range of 1.4- 3.4 GHz. A matching network using a 6th and 8th-order low-pass chebyshev filters is designed at the output and input, respectively, which provide the optimal fundamental impedance and allow harmonic control up to the third order within an octave bandwidth. The main contribution of this work is the combination of two class (F−1/F) and design of wideband matching network for each band, also, the simple design of filters and the condition introduced for both frequency bands of operation to make the design simpler. With the proposed condition on the center frequency of each band, it is simpler to design matching networks to provide proper impedances for harmonics. Both simulation and measurement results show that an optimal Class F−1 PAis realized from 1.7 to 2.3 GHz with a measured efficiency of 66-83.8% and output power of 37–40 dBm. Meanwhile, the PA acts as an optimal Class $F$ amplifier in the frequency range of 3.2-3.4 GHz with a measured efficiency of 62-76% and output power of 38.7-40 dBm. The implemented P A achieves a measured bandwidth from 1.4-3.4 GHz with >36 dBm output power and >58% drain efficiency. The measurement results show that this PAis among the best reported works.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"4 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":"125566193","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
An incentive compatible reward sharing approach for shard-based blockchains 基于分片的区块链的激励兼容奖励共享方法
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544332
M. Hemati, M. Shajari
{"title":"An incentive compatible reward sharing approach for shard-based blockchains","authors":"M. Hemati, M. Shajari","doi":"10.1109/ICEE52715.2021.9544332","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544332","url":null,"abstract":"Sharding is a way to solving the scalability problem in the blockchain. The sharding method uses traditional consensus algorithms, such as PBFT. In traditional consensus algorithms, network nodes can register blocks by working together. In these algorithms, an important issue is how to motivate group nodes to participate in the consensus algorithm so as not to cause collusion or free-riding. In this paper, we first examine the previous solutions that try to solve the incentive mechanism in sharding blockchain and show that these solutions do not consider the leader's role in involving other nodes in the consensus algorithm. By the game theory, we show that the leader for increasing his benefit prevents some nodes from participating in the consensus algorithm, which creates collusion. We propose a solution to motivate group nodes in the sharding method and by the game theory prove that this solution is incentive compatible and also does not causes any collusion.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"31 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":"125774171","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
Robust Laguerre based model predictive control for trajectory tracking of LTV systems LTV系统轨迹跟踪的鲁棒拉盖尔模型预测控制
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544190
Marzieh Jamalabadi, M. Naraghi, I. Sharifi, Elnaz Firouzmand
{"title":"Robust Laguerre based model predictive control for trajectory tracking of LTV systems","authors":"Marzieh Jamalabadi, M. Naraghi, I. Sharifi, Elnaz Firouzmand","doi":"10.1109/ICEE52715.2021.9544190","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544190","url":null,"abstract":"In this paper, the trajectory tracking of a nonholonomic and linear time-varying (LTV) mobile robot is studied. The slippery surface condition is a source of uncertainty for this constrained mobile robot and is modeled as a bounded additive disturbance. The primary objective is to design a robust model predictive control based on Laguerre functions utilizing the tubes' theory. The system's time-varying dynamic results in generating time-varying tubes and increasing the operation time. To tackle this challenge, some offline calculations are performed to guarantee the control algorithm's real-time operation, ensuring satisfactory performance and stability. Two controllers were designed. In the first case, the designing inputs changed through the execution time, while the other controller was just designed for the specifically chosen dynamic. Illustrative simulations are presented to show the applicability of the proposed method.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"107 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":"129861244","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
Detecting Variance Changes in Alarm Systems Using Generalized Delay-timers 用广义延迟定时器检测报警系统的方差变化
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544446
Zahra Sharifi, I. Izadi, J. Ghaisari
{"title":"Detecting Variance Changes in Alarm Systems Using Generalized Delay-timers","authors":"Zahra Sharifi, I. Izadi, J. Ghaisari","doi":"10.1109/ICEE52715.2021.9544446","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544446","url":null,"abstract":"Alarm systems, as a layer of protection in processes and industrial complexes, have attracted much attention in both industry and academia. A simple yet extremely common approach to monitor processes is to raise an alarm when the value of a process variable exceeds its predetermined limits. This approach, however, is not effective when an abnormality or fault changes the variance of a process variable, and not necessarily its mean value. In this paper, a method based on generalized delay-timer is proposed to detect such changes. Subsequently, an algorithm is developed for optimization of the generalized delay-timer parameters based on the properties of the process data. Simulation results confirm the effectiveness of the proposed methods.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"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":"129683970","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
Transfer Learning Based Method for Human Activity Recognition 基于迁移学习的人体活动识别方法
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544129
S. Zebhi, S. Almodarresi, V. Abootalebi
{"title":"Transfer Learning Based Method for Human Activity Recognition","authors":"S. Zebhi, S. Almodarresi, V. Abootalebi","doi":"10.1109/ICEE52715.2021.9544129","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544129","url":null,"abstract":"A gait history image (GHI) is a spatial template which accumulates areas of movement into a univalent template. A new descriptor named Time-sliced averaged gradient boundary magnitude (TAGBM) is constructed to show the time variations of motion. In the proposed approach, every video is parted into L and M groups of successive frames, so GHI and TAGBM are calculated for every group, resulting spatial and temporal templates. Transfer learning method has been utilized for classifying them. This proposed approach gets the recognition efficiencies of 96.5% and 92.7% for KTH and UCF Sport action datasets, respectively.","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"37 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":"129424807","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
Wide-band Cloaking of Finite Length PEC Cylindrical Objects under Oblique Incidence using Multi-Layer Mantle Cloak 斜入射下有限长度PEC圆柱形物体的多层斗篷宽带隐身
2021 29th Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2021-05-18 DOI: 10.1109/ICEE52715.2021.9544464
A. Moosaei, M. H. Neshati
{"title":"Wide-band Cloaking of Finite Length PEC Cylindrical Objects under Oblique Incidence using Multi-Layer Mantle Cloak","authors":"A. Moosaei, M. H. Neshati","doi":"10.1109/ICEE52715.2021.9544464","DOIUrl":"https://doi.org/10.1109/ICEE52715.2021.9544464","url":null,"abstract":"In this paper, the possibility of cloaking metallic cylinders for a wide range of incident angles and wide bandwidth of obliquely incidence plane wave using well-known Mantle cloaking technique. Initially, the scattering problem of multilayer is solved analytically considering a full tensor to model the sheet impedance of an ideal metasurface wrapped around the object to be cloaked. Then, unlike conventional capacitive patch metasurface, an optimized capacitive rectangular patch metasurface is designed to suppress both co- and cross-polarization scattered fields. Moreover, to enhance the cloaking bandwidth a double layer mantle is introduced and it is shown that nearly 33%cloaking the bandwidth is achieved. The analysis is verified using full-wave simulations performed in CST Microwave Studio (MWS).","PeriodicalId":254932,"journal":{"name":"2021 29th Iranian Conference on Electrical Engineering (ICEE)","volume":"23 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":"129927850","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
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