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In this paper, three designs of planar antenna is presented. These low profile planar antennas can be used within widely used bands of frequencies that is, between 800MHz to 9GHz (10 bands) of all cellular from 2G to 4G and beyond. In addition, the coverage frequency includes wireless local area networks (WLAN) and WiMax. Significant structural changes are made in one of the latest structure of multiband...
Induction motors have been responsible for running mechanical systems in the industry for many decades. Their diagnosis still remains a hot quest for the researchers using various techniques. In this study, motor current signature analysis (MCSA) technique has been used to detect the faulty bearing installed in load machine (coupled to an induction motor). It has been seen that faulty bearings installed...
Microgrid is a well known concept in present power system industry. Its increasing trends overcome the effect of depleting fossil fuels and increasing electricity demand. The energy scheduling of microgrid is an open issue in current power system industry and it is a difficult task. This paper presents the economic energy scheduling of a microgrid, consisting of wind turbine (WT) and photovoltaic...
In present scenario, electricity demand rise drastically and conversely fossil fuel resources are depleting from nature, continuously. Consequently, dependence on natural energy resources, such as solar, wind is increased. These are connected to the main grid to meet the increased electricity demand and the power system is transformed in to a hybrid power system (HPS). Battery storage (BS) is also...
Recently, trends towards the integration of renewable energy sources (RES) like wind energy in to the microgrid increased sharply, so the requirement of battery storage system (BSS) also increased dramatically to make these sources dispatchable. Optimal scheduling of renewable energies along with BSS is a tedious task, as these sources are dependent on uncertainty of nature. In this paper various...
In this paper, the performance of iterative turbo coding with nonlinearly distorted orthogonal frequency division multiplexing (OFDM) signal is analyzed. System level implementation in Simulink is performed and bit error rate (BER) performance is analyzed. Initially, we have implemented both, the series turbo coder and iterative turbo coder, compared the performance and then using better performed...
Optimal energy management of microgrid is essential for providing reliable and economical power to its customers. A grid connected microgrid that consists wind plant (WP), hydro plant, battery storage system (BSS) used as study system. Profit maximization with consideration of capital cost, operation and maintenance (OM) cost, replacement cost and salvage value of BSS and WP. Different diverse meteorological...
This paper presents a design and methodology for accurate characterization of setup and hold margins in silicon while taking into account effects of Process Variations (PV). The test circuit provides deeper insights into sources of extra timing margins available on silicon. This in turn, enables accurate guard banding by preventing optimism and reducing unnecessary pessimism in the timing margins...
Fulfilling the energy demand is an important issue in the power system. As conventional fossil fuels based energy resources are limited on the earth and expected to be depleted in few decades. Microgrid with battery energy storage is commonly employed nowadays to full-fill the demand. For better performance of microgrid, optimal energy management is essential. Therefore, the optimal utilization of...
Guaranteeing quality of service (QoS) to transmit real time applications which are delay sensitive is of utmost importance in Internet of Things (IoT) environment. This paper presents a dynamic Markov Chain based scheduling scheme for ensuring QoS for the delay sensitive traffic in IoT. The traffic is classified into prioritized and non- prioritized traffic. By estimating previous bandwidth allocated...
A number of issues are being addressed in prospective millimetre wave (mmWave) technology for the design of 5G cellular networks. High atmospheric attenuation in the proposed 60GHz band for 5G system put a limit in the communication range and cell size. The channel characteristics may vary for many different indoor and outdoor scenarios, resulting in differing performance. In this paper, an attempt...
In this paper, image segmentation process using thresholding technique is discussed. We focus our study for nuclei detection of Hematoxilin Eosin (HE) stained colon tissue for the cancer detection. Detection of cancer cell at early stage is very important and several studies are being carried out. In medical imaging for the processing of microscopic tissue images and especially the detection of cell...
In a dynamic access network, multiple secondary users access and share channels that are not used by the primary users. Uncoordinated and random channel access by the secondary users access leads to decreased secondary network throughput as users in the close proximity interfere with each other. In order to better utilize the channels, we propose a scheduling technique that assigns unique time slots...
In this paper, a visible light communication (VLC) in the indoor environment based on MIMO system is investigated and analyzed. An attempt is made to optimize the placement of light emitting diodes (LED) VLC emitter in 4 × 4 MIMO configuration at ceiling and ground floor for the receiver to obtain uniform signal-to-noise ratio (SNR) for the desired bit error rate (BER) in the given area. The system...
This paper proposes a new dynamic packet scheduling scheme which guarantees the delay and jitter properties of differentiated services (DiffServ) network for both real time and non-real time traffics. The proposed dynamic packet scheduling algorithm uses a new weighted computation scheme known as dynamic benefit weighted scheduling (DB-WS) which is loosely based on weighted round robin (WRR) or fair...
In this paper, waiting time analysis for the delay sensitive traffic especially in Internet of things (IoT) is performed. The analysis is based on probabilistic prediction approach for providing Quality of Service (QoS). A dynamic packet scheduling scheme is considered to provide service differentiation and preferential treatment to delay sensitive traffic. The scheduler focuses on reducing the waiting...
In recent years, non-stationary, non-invasive imaging methodologies demonstrated as reliable, quantitative, remote characterization and evaluation methods for characterization of biological samples. This present work incorporates a digitized frequency modulated thermal wave imaging (DFMTWI) followed by time domain analysis for bone diagnostics, especially bone with tissue, skin and muscle over layers...
In this modern world due to the increased number of different types of loads in the power system the voltage profile and the power quality is being affected. So one of the cheapest and widely used method to improve the voltage profile is to install capacitor banks. They are erected in the distribution substation and are connected to a bus where more number of loads are connected. Nowadays various...
In large scale chip multicore, last level cache management and core interconnection network play important roles in performance and power consumption. And in large scale chip multicore, mesh interconnect is used widely due to scalability and simplicity of design. As interconnection network occupied significant area and consumes significant percent of system power, bufferless network is an appealing...
In this paper, we design a new dynamic packet scheduling scheme suitable for differentiated service (DiffServ) network. Designed dynamic benefit weighted scheduling (DBWS) uses a dynamic weighted computation scheme loosely based on weighted round robin (WRR) policy. It predicts the weight required by expedited forwarding (EF) service for the current time slot (t) based on two criteria; (i) previous...
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