电路与系统(英文)最新文献_第9页

Data Intelligent Low Power High Performance TCAM for IP-Address Lookup Table 数据智能低功耗高性能TCAM的ip地址查找表

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711313

K. Mathan, T. Ravichandran

{"title":"Data Intelligent Low Power High Performance TCAM for IP-Address Lookup Table","authors":"K. Mathan, T. Ravichandran","doi":"10.4236/CS.2016.711313","DOIUrl":"https://doi.org/10.4236/CS.2016.711313","url":null,"abstract":"This paper represents \u0000current research in low-power Very Large Scale Integration (VLSI) domain. Nowadays \u0000low power has become more sought research topic in electronic industry. Power \u0000dissipation is the most important area while designing the VLSI chip. Today almost all of the high speed switching devices include the Ternary \u0000Content Addressable Memory (TCAM) \u0000as one of the most important features. When a \u0000device consumes less power that becomes reliable and it would work with more \u0000efficiency. Complementary Metal Oxide Semiconductor (CMOS) technology is best known for low power \u0000consumption devices. This paper aims at designing a router application device which consumes less power and \u0000works more efficiently. Various strategies, methodologies and power \u0000management techniques for low power circuits and systems are discussed in this \u0000research. From this research the challenges could be developed that might be \u0000met while designing low power high performance circuit. This work aims at developing Data Aware \u0000AND-type match line architecture for TCAM. A TCAM macro of 256 × 128 was designed using \u0000Cadence Advanced Development Environment (ADE) with 90 nm technology file from Taiwan Semiconductor \u0000Manufacturing Company (TSMC). The result shows that the proposed Data Aware \u0000architecture provides around 35% speed and 45% power improvement over existing \u0000architecture.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70465697","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

Design and Implementation of Bi-Directional DC-DC Converter for Wind Energy System 风电系统双向DC-DC变换器的设计与实现

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711311

K. Suresh, R. Arulmozhiyal

{"title":"Design and Implementation of Bi-Directional DC-DC Converter for Wind Energy System","authors":"K. Suresh, R. Arulmozhiyal","doi":"10.4236/CS.2016.711311","DOIUrl":"https://doi.org/10.4236/CS.2016.711311","url":null,"abstract":"This paper proposes a design and implementation of the bi-directional DC-DC converter for Wind Energy Conversion System. The proposed project consists of boost DC/DC converter, bi-directional DC/DC converter (BDC), permanent magnet DC generator and batteries. A DC-DC boost converter is interface with proposed wind system to step up the initial generator voltage and maintain constant output voltage. The fluctuation nature of wind makes them unsuitable for standalone operation. To overcome the drawbacks an energy storage device is used in the proposed system to compensate the fluctuations and to maintain a smooth and continuous power flow in all operating modes to load. Bi-directional DC-DC converter (BDC) is capable of transforming energy between two DC buses. It can operate as a boost converter which supplies energy to the load when the wind generator output power is greater than the required load power. It also operates in buck mode which charges from DC bus when output power is less than the required load power. The proposed converter reduces the component losses and increases the performance of the overall system. The complete system is implemented in MATLAB/SIMULINK and verified with hardware.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70465831","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: 18

Information Driven Data Gathering for Energy Efficient Wireless Sensor Network 高能效无线传感器网络的信息驱动数据采集

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711324

K. Raja, L. R. Karlmarx

引用次数: 2

Design of Soft Computing Based Optimal PI Controller for Greenhouse System 基于软计算的温室系统最优PI控制器设计

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711292

A. Manonmani, T. Thyagarajan, S. Sutha, V. Gayathri

{"title":"Design of Soft Computing Based Optimal PI Controller for Greenhouse System","authors":"A. Manonmani, T. Thyagarajan, S. Sutha, V. Gayathri","doi":"10.4236/CS.2016.711292","DOIUrl":"https://doi.org/10.4236/CS.2016.711292","url":null,"abstract":"Greenhouse system (GHS) is the worldwide fastest growing phenomenon in agricultural sector. Greenhouse models are essential for improving control efficiencies. The Relative Gain Analysis (RGA) reveals that the GHS control is complex due to 1) high nonlinear interactions between the biological subsystem and the physical subsystem and 2) strong coupling between the process variables such as temperature and humidity. In this paper, a decoupled linear cooling model has been developed using a feedback-feed forward linearization technique. Further, based on the model developed Internal Model Control (IMC) based Proportional Integrator (PI) controller parameters are optimized using Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) to achieve minimum Integral Square Error (ISE). The closed loop control is carried out using the above control schemes for set-point change and disturbance rejection. Finally, closed loop servo and servo-regulatory responses of GHS are compared quantitatively as well as qualitatively. The results implicate that IMC based PI controller using PSO provides better performance than the IMC based PI controller using GA. Also, it is observed that the disturbance introduced in one loop will not affect the other loop due to feedback-feed forward linearization and decoupling. Such a control scheme used for GHS would result in better yield in production of crops such as tomato, lettuce and broccoli.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70463695","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

New Log-Domain First-Order Multifunction Filter Using MOSFETs in Weak Inversion 基于mosfet的弱反转对数域一阶多功能滤波器

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711299

M. Jain, V. Singh

引用次数: 1

Optimum Simultaneous Allocation of Renewable Energy DG and Capacitor Banks in Radial Distribution Network 径向配电网中可再生能源DG和电容器组同步优化配置

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711302

Sivasangari Rajeswaran, K. Nagappan

{"title":"Optimum Simultaneous Allocation of Renewable Energy DG and Capacitor Banks in Radial Distribution Network","authors":"Sivasangari Rajeswaran, K. Nagappan","doi":"10.4236/CS.2016.711302","DOIUrl":"https://doi.org/10.4236/CS.2016.711302","url":null,"abstract":"Nowadays the optimal allocation \u0000of distributed generation (DG) in the distribution network becomes the popular research \u0000area in restructuring of power system. The capacitor banks introduced in the distribution \u0000networks for reactive power compensation also have the capacity to minimize the \u0000real and reactive power losses occurred in the system. Hence, this research integrates \u0000the allocation of renewable energy DG and capacitor banks in the radial distribution \u0000network to minimize the real power loss occurred in the system. A two-stage methodology is used for \u0000simultaneous allocation of renewable DG and capacitor banks. The optimum location \u0000of renewable energy DG and capacitor banks is determined using the distributed generation \u0000sitting index (DGSI) ranking method and the optimum sizing of DG and capacitor banks \u0000is found out for simultaneous placement using weight improved particle swarm optimization \u0000algorithm (WIPSO) and self adaptive differential evolution algorithm (SADE). This two-stage methodology reduces the \u0000burden of SADE and WIPSO algorithm, by using the DGSI index in determining the optimal \u0000location. Hence the computational time gets reduced which makes them suitable for \u0000online applications. By using the above methodology, a comprehensive performance \u0000analysis is done on IEEE 33 bus and 69 bus RDNs and the results are discussed in \u0000detail.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70464442","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: 7

Block Level Data Integrity Assurance Using Matrix Dialing Method towards High Performance Data Security on Cloud Storage 基于矩阵拨号的块级数据完整性保障——面向云存储高性能数据安全

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711307

P. Premkumar, D. Shanthi

{"title":"Block Level Data Integrity Assurance Using Matrix Dialing Method towards High Performance Data Security on Cloud Storage","authors":"P. Premkumar, D. Shanthi","doi":"10.4236/CS.2016.711307","DOIUrl":"https://doi.org/10.4236/CS.2016.711307","url":null,"abstract":"Data outsourcing through cloud storage enables the users to share on-demand resources with cost effective IT services but several security issues arise like confidentiality, integrity and authentication. Each of them plays an important role in the successful achievement of the other. In cloud computing data integrity assurance is one of the major challenges because the user has no control over the security mechanism to protect the data. Data integrity insures that data received are the same as data stored. It is a result of data security but data integrity refers to validity and accuracy of data rather than protect the data. Data security refers to protection of data against unauthorized access, modification or corruption and it is necessary to ensure data integrity. This paper proposed a new approach using Matrix Dialing Method in block level to enhance the performance of both data integrity and data security without using Third Party Auditor (TPA). In this approach, the data are partitioned into number of blocks and each block converted into a square matrix. Determinant factor of each matrix is generated dynamically to ensure data integrity. This model also implements a combination of AES algorithm and SHA-1 algorithm for digital signature generation. Data coloring on digital signature is applied to ensure data security with better performance. The performance analysis using cloud simulator shows that the proposed scheme is highly efficient and secure as it overcomes the limitations of previous approaches of data security using encryption and decryption algorithms and data integrity assurance using TPA due to server computation time and accuracy.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70465187","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

Investigational Validation of PV Based DCD-MLI Using Simplified SVM Algorithm Utilizing FPGA Tied with Independent Sources 基于独立源的FPGA简化SVM算法对PV - DCD-MLI的研究验证

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711320

M. Rajkumar, P. Prakasam, P. Manoharan

{"title":"Investigational Validation of PV Based DCD-MLI Using Simplified SVM Algorithm Utilizing FPGA Tied with Independent Sources","authors":"M. Rajkumar, P. Prakasam, P. Manoharan","doi":"10.4236/CS.2016.711320","DOIUrl":"https://doi.org/10.4236/CS.2016.711320","url":null,"abstract":"This \u0000paper presents the independent source tied photovoltaic (PV) based three-phase \u0000three-level diode-clamped-multilevel inverter (DCD-MLI) utilizing field \u0000programmable gate array (FPGA) controller. The maximum power point (MPP) is \u0000tracked by using fuzzy logic algorithm. Employed for gating signal generation, \u0000the space vector modulation (SVM) strategy eradicates the complexity in determining the reference vector location, the ON-time \u0000calculations and switching state selection. A digital proportional integral \u0000(PI) control algorithm is implemented on a FPGA to keep the current injected \u0000into the independent source (grid) sinusoidal and to achieve high dynamic \u0000performance with low total harmonic distortion (THD) of output voltage and \u0000output current which are 0.97% and 1.26%. With the proposed configuration, the adjustments of \u0000modulation index and phase angle are synthesized onto a FPGA by means of hardware description \u0000language (VHDL). The efficacy of the scheme is verified through simulation \u0000study. To confirm the feasibility of the scheme, experimental studies are \u0000carried out on a scaled-down laboratory prototype.","PeriodicalId":63422,"journal":{"name":"电路与系统(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70466008","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: 19

Ride through Strategy for a Three-Level Dual Z-Source Inverter Using TRIAC 利用可控硅的三电平双z源逆变器的穿越策略

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711326

A. Ali, R. Jeyabharath

引用次数: 17

A Continuous Health Monitoring System for Photovoltaic Array Using Arduino Microcontroller 基于Arduino单片机的光伏阵列连续健康监测系统

电路与系统(英文) Pub Date : 2016-09-06 DOI: 10.4236/CS.2016.711297

P. Pounraj, D. Winston, S. Christabel, R. Ramaraj

引用次数: 6