Past Issue


Vol. 2 No. 1 2017

Quality of Service and Topology Control Protocol in Wireless Sensor Network: A Survey Original Research Article

Pages 01-12
Sathya Prakash P, Prakasam P

Abstract

Recently, Wireless sensor network (WSN) consume advance concept of the essential service area in connecting field. This is a direct result of the sensors when contrasted with others are adaptable, proficient, less expensive, and smaller. In additionally requires data accuracy, less power utilization and security in wireless sensor network. In different applications like Congestion protocol, topology controls are examined and characterized in this paper. WSN concentrate on the Quality of Service (QoS) fulfillment and fundamentals of QoS support in WSNs, and all the more essentially test, requirements of QoS at each layer. Moreover, we review the QoS protocol and arrange the QoS aware protocol and explain their upsides and downsides. We additionally examine the QoS parameters regarding every convention execution parameters. A study and detailed discourse on the QoS of WSNs are displayed, including their qualities and constraints. We also discussed the challenges that are evolved in Wireless Sensor Network.

Research Highlights

We additionally examine the QoS parameters regarding every convention execution parameters.

A study and detailed discourse on the QoS of WSNs are displayed, including their qualities and constraints.

We also discussed the challenges that are evolved in Wireless Sensor Network.

Quality of Service and Topology Control Protocol in Wireless Sensor Network: A Survey

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Laser Range Finder and Velocimeter using Ultra High Performance Dual Phase TDC Original Research Article

Pages 13-18
Alamelu J, Latha P

Abstract

This paper presents a high accuracy laser range finder and velocimeter using ultra high performance time-to-digital converter (TDC). The system operation is mainly based on measuring the round-trip time of a narrow laser pulse. A high-speed photodiode is used to detect the triggered laser beam and to produce start signal. Binary addition is one of the foremost vital arithmetic functions in digital VLSI systems. Ripple carry adders area unit replaced by the parallel prefix adder to decrease the delay and increase performance of TDC. The need of the adder is that it is quick and second economical in terms of power consumption and chip space. Parallel prefix adder could be a technique for increasing speed of the addition. This paper involves various techniques to achieve high performance TDC thereby the accuracy of laser range finders and velocimeter could be increased.

Research Highlights

Parallel prefix adder could be a technique for increasing speed of the addition.

This paper involves various techniques to achieve high performance TDC thereby the accuracy of laser range finders and velocimeter could be increased.

Laser Range Finder and Velocimeter using Ultra High Performance Dual Phase TDC.

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Self-Centering Precast Concrete Dual Shell Column-Comparison with Monolithic Column in ANSYS Original Research Article

Pages 19-22
Sreelakshmi PN

Abstract

Seismic design of a structure is always aimed at in elastic response, which will lead to damages in lateral force resisting elements. As a consequence, research efforts have been prompted into advanced technologies that reduce residual damage to the main structural elements, provide added energy dissipation and encompass self-centering properties which allow the structural system to return to its original position after an earthquake. Self-centering dual-shell bridge column is an example for this. The column consists of two steel cylindrical shells, with high-performance concrete cast in between. Large inelastic rotations can be accommodated at the end joints with minimal structural damage, since gaps are allowed to open at these locations and to close upon load reversal. Longitudinal posttensioned bars, designed to respond elastically, in combination with gravity forces ensure self-centring behaviour. Internal or external steel devices provide energy dissipation by axial yielding. This paper includes the behaviour of prototype column under axial and lateral loads, and comparison of a new prototype model with conventional column using the software package ANSYS 16.2. It also includes the comparison of results with conventional column.



Research Highlights

This paper includes the behaviour of prototype column under axial and lateral loads, and comparison of a new prototype model with conventional column using the software package ANSYS 16.2.

It also includes the comparison of results with conventional column.

Self-Centering Precast Concrete Dual Shell Column-Comparison with Monolithic Column in ANSYS

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An Energy Efficient PMDC Motor using CUK Converter Original Research Article

Pages 23-26
Elavarasi C, Aishwarya D

Abstract

In this paper, novel high voltage-boosting converters are presented. By changing the connection position of the anode of the diode and by using different pulse-width-modulation control strategies, different voltage conversion ratios can be obtained. These type of converters are constructed based on bootstrap capacitors and boost inductors. Above all, two boost inductors with different values, connected in series, which can still make the proposed converters work appropriately. Furthermore, there are three switches in each converter, only one half-bridge gate driver and one low-side gate driver are needed, but no isolated gate driver would be needed. After some mathematical deductions, some experimental results are provided to verify the effectiveness of the proposed converters.





Research Highlights

Furthermore, there are three switches in each converter, only one half-bridge gate driver and one low-side gate driver are needed, but no isolated gate driver would be needed.

After some mathematical deductions, some experimental results are provided to verify the effectiveness of the proposed converters.

An Energy Efficient PMDC Motor using CUK Converter

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