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Software processes and Software Engineering (SE) methods belong to those knowledge areas which are challenging to be taught intuitively accessible. The specification “Kernel and Language for Software Engineering Methods (Essence)” [1] claims to deliver an approach to consolidate all essential dimensions of SE-endeavors into an universal compact and actionable kernel. This paper describes the characteristics...
This paper presents a characteristic comparison among reduced semiconductor equivalents of dual back-to-back converter. Being widely reported, the nine-switch and ten-switch based converters are considered for the comparative analysis. Conduction losses of both these converters are compared to identify the merits and drawbacks as they are used in dc-ac, ac-dc, dc-dc or ac-ac energy conversion systems...
Mostly all domestic and commercial installation uses 3-phase 4-wire distribution system, but pretty much appliances are single phased which may create unbalance in the supply system also typical loads like TV, personal computers, mobile phone chargers, Air conditioners etc. uses power electronic converters and draws non-sinusoidal currents, these two situations may cause high neutral current and create...
In this paper high speed single output synchronous dc-dc boost converter is presented with type-III compensation network for power management in smart devices. Due to its quicker response time, it can handle load changes quickly as compared to other control techniques. Calculated phase margin and gain makes oscillation free output transient response. Input voltage is 1.8V, Inductance used is 600nH,...
Compressive sensing (CS) based techniques have been demonstrated to be suitable for UWB based applications to reduce the sampling rate required at the receiver. However, current CS based UWB positioning techniques require high-rate mixing operations to generate the PN sequence to achieve random mixing. This paper proposed a modified CS based implementation that employs relatively low-rate random pre-mixing...
Digital watermarking is a valid solution to protect copyright of owners. But there is still a difficult problem of copyright disputes as the IBM attack or the interpretation attack when multiple watermarks of multiple authors appear in the same digital media. We provide a new feasible solution, in which a multiple watermarking scheme using complete complementary code based on the spread spectrum is...
This paper focus on performance analysis of Model Predictive Controller (MPC) due to the presence of constraint in its algorithm. The controllers are tested in Small-Medium Industry Steam Distillation Plant (SMISD) for regulating the steam temperature at the desired level. The performance of the controller are evaluated based on percentage overshoot, settling time and rise time. The simulation and...
Cloud Computing is an emerging field of technology that relies on sharing of resources over the Internet to achieve economy of scales. It has gained momentum among both individuals and corporate sectors due to a variety of applications such as ease of administration, mobility and collaboration, reduction of hardware and licensing cost, and scalability. Researchers are also trying to explore and analyze...
Hardware impairments of physical transceivers that create distortions degrade the performance of communication. This paper analyzes the performance with different relay selections which include partial relay selection and opportunistic relay selection in amplify-and-forward (AF) cooperative network with hardware impairments. Partial relay selection is that the relay node is selected depending on the...
Based on one or several views, view synthesis creates other views for the purpose of view prediction (for compression) or view rendering (for multiview-display). Luminance adjustment and hole filling are two key issues in view synthesis. In this paper, two views are used to produce an arbitrary virtual synthesized view. One view is merged into another view using a local luminance adaptive adjustment...
In this paper, we consider the problem of minimizing the maximum broadcast decoding delay experienced by all the receivers of generalized instantly decodable network coding (IDNC). Unlike the sum decoding delay, the maximum decoding delay as a definition of delay for IDNC allows a more equitable distribution of the delays between the different receivers and thus a better Quality of Service (QoS)....
3D-ICs have emerged in the past few years. While they solve a large number of problems related to scaling, they also create new ones. Removing the heat from the layers far from the cooling facilities is a great challenge still under intensive research. This paper shows how logi-thermal simulation can be used to predict the operation parameters of large digital systems realized in 3D-ICs. The method...
This paper proposes a new decoupling control for high speed permanent magnet synchronous motor (HS-PMSM) based on the least squares support vector machine (LS-SVM) inversion system. And the online LS-SVM inverse controller is developed for the pseudo-linear system. Considering of the parameter regulating process of the LS-SVM, a proportional integral derivative (PID) controller is combined to improve...
Today's Enterprises exist in highly dynamic environment. While enterprise-architecture (EA) based models help in holistic treatment of enterprise aspects, they are static in nature and do not represent the complex dynamic behavior of enterprise as it evolves over time. Instead of relying on guideline for simulating EA models as in other approaches, we propose a comprehensive metamodel of system dynamics...
This paper describes a fine resolution, good linearity, and high throughput time-to-digital converter (TDC), which has realized in 0.18um CMOS technology. Based on a two-channel Vernier delay line (VDL) structure and an asynchronous pipelined readout circuitry, the TDC can achieve a maximum throughput of 500MS/s, a time resolution of 10ps and a total conversion range of 640ps. The proposed architecture...
This paper presents a stable low-dropout (LDO) regulator with large load current. It maintains stable with great range of load current by adopting the Miller frequency compensation combined with a fast-response loop circuit. Furthermore, the slew rate for the large signal of the LDO has been improved by exploiting a novel Slew Rate Enhancement (SRE) circuit.
In this paper, we propose simple model following control design methods for a stable and an unstable plant. Each method is based on the pole placement using model parameters. In simulation studies, we show various cases including a nominal plant and the plant with a modeling error for a stable plant, an unstable plant, and a DC motor. These results show that the proposed methods have been superior...
This paper presents The ONE-SAPERE simulator, the first simulator combining an opportunistic network environment simulator with a middleware for pervasive systems, the SAPERE Middleware, which has already been released for Android devices and PCs.
Cooperative spectrum sensing is proposed as an efficient way to detect the spectrum holes in cognitive radio networks (CRNs). This technique, however, opens a window for malicious users (MUs) and attackers, who send distorted spectrum sensing data to the FC. In order to defend against such attacks, it is necessary for the FC to distinguish the trustiness of the reports from SUs. In this paper, we...
Radio Frequency Identification (RFID) is largely used for UHF RFID inventory management system in the shop or warehouse. Recently, it is pointed out that Blocker Tag (BT), which is originally used to protect the privacy, jams RFID inventory management system and a BT detection scheme is proposed. The conventional BT detection scheme detects BT based on the anomaly of the observed number of collision...
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