International Journal of New Practices in Management and Engineering
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136 research outputs found
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Healthcare System through Wireless Body Area Networks (WBAN) using Telosb Motes
Full text linkDue to the increased demand for an effective communication technology in the health care sector, a wireless network is needed that effectively monitors the patient’s vital sign and send reports concurrently to the remote system. This increases the comfort level of monitoring the patients continuously. The main idea of this article work is to build up a WBAN that endlessly monitors human healthiness parameters and reports information to the nearby PC/sinks. The small wearable devices which is memory efficient, energy efficient, less computational complexity are deployed on the patient to be monitored. They self-configure to endlessly monitor critical signs such as heart beat, core temperature etc. The energy efficiency and transmission delay is analyzed by using Cooja simulator. Finally the design is implemented in the Telosb wireless sensor motes
Analysis of Analog to Digital Converter for Biomedical Applications
Full text linkThis paper presents an ADC which can be used for biomedical application like pacemaker. For the low-power operation, monotonic switching scheme and operating voltage reduction have been implemented in the design. The 10bit 1.8V rail-to-rail (SAR) ADC is realized using UMC 0.18µm CMOS process. Simulations are performed by spectre simulation. From static performance, offset error and full scale error are noticed. This performance issue can be corrected by reducing discharge in capacitor by implementing sampling switch as bootstrapped switch and proper selection of common-mode voltage where 20fF is used as unit capacitance
Efficient Cluster Formation Protocol in WSN
Full text linkWSN which is called as Wireless Sensor Networks plays vital role in many applications. Most WSNs exploit clustering method for data communication from sensor destination nodes to the sink. So, Clustering should be made as efficient as possible. In most of the existing clustering protocols, residual nodes (non-cluster nodes) may be formed during clustering. Though these nodes can send their data directly to the base station, it needs large amount of energy. In the proposed method, PSO algorithm which is termed as Particle Swarm Optimization is used for cluster configuration which evades the formation of residual nodes. The base station performs cluster formation. Network Simulator-2 (NS-2) tool is used to achieve simulation. Simulation outcomes reveal enhanced operation of the proposed protocol than existing LEACH and OEERP protocols
Vedic Multiplier Implementation for High Speed Factorial Computation
Full text linkVedic Mathematics arise from the prehistoric classification of Indian mathematics that was recreated by Tirthaji. Ancient mathematical operations are depending on sixteen methods. In this article, a new VLSI architecture to compute factorial of the given number with Vedic based multiplier is proposed. Simulations are performed using Xilinx ISE 14.2. Effective comparative analysis is made with existing multipliers to prove the momentous development in competence and high speed operation. This efficient multiplier is implemented in the proposed factorial architecture which significantly reduces the path delay and provides better optimization
Performance Analysis of Positive Lift LUO Converter
Full text linkThe quick depletion of remnant fuels, environmental pollution has become more solemn matter. Recently a good deal effort made to find renewable energies and solar energy is the ideal solution. In photovoltaic arrays, cells are arranged in series to obtain the required voltage. The output characteristic feature of photovoltaic array show a discrepancy radically by way of solar irradiation, temperature and presents MPP under various atmospheric nominal conditions. Based on Perturbation and Observation method, MPP is tracked for PV. The DC-DC converter is used to improve the output voltage and are widely used in solar energy conversion systems.. Here ultra-lift LUO converters are normally used to convert low input voltage in to high output voltage (same principle of Boost converter). But these converters are not stable in voltage lift and less reliability. By using Voltage lift method, voltage transfer gain higher than other classical converters is obtained
Design and Analysis of Class-E Power Amplifier for Wired & Wireless Systems
Full text linkIn this research article, an advanced class-E Power Amplifier (PA) working at center frequency 1842.5MHz with 75MHz bandwidth is proposed. The class E type power amplifier is premeditated and realized using 0.35µm CMOS technological file in ADS. The proposed class E power amplifier provides low return loss, Signal and Noise Ratio of 47.5dB, low noise figure of 1.434dB and PAE of 69.3%