F: Electrical & Electronic

F: Electrical & Electronic (302)

GJRE: F

The electricity supply with minimum possible losses is the challenge to the developing countries like Bangladesh. Limited energy sources, improper long term policies & some major system losses are responsible for hindering this challenge. Considering these problems of Bangladesh, some solutions have been proposed but still those fail to mitigate that problem fully. So this paper emphasiz...
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Authors Dr. Khizir Mahmud, A.K.M. Mahmudul Haque
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Page No. 1 to 6

Broadband wireless networks are considered to be enterprise-level networks providing more capacity and coverage. Wireless networking has offered an alternative solution to the problem of information access in remote inaccessible areas where wired networks are not cost effective. They have changed the way people communicate and share information by eliminating worrisome factors of distanc...
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Authors Dr. Gurjeet Singh
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Page No. 43 to 47

All over the world, security has been a major concern in every home. Here, a security system has been developed that uses sensors to detect any security violation and sends out the alert signal by high intensity Buzzer. The system mainly consists of LDR, Laser, Logic Gates, Microcontroller IC, LCD, Keypad and Relay Circuit. L3 stands for LDR, Laser and Logic Gates as these 3 components f...
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Authors Dr. B V Sumangala, K Bhargava Ram
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Page No. 37 to 42

A DOCDMA (dynamic optical code division multiple access) communication system is projected for high-bandwidth communication systems. At the receiver, a synchronized TOF with the same function is used as a decoder. In this system, an electrically controlled tunable optical filter (TOF) is used to encode the modulated broadband light source. This technique dynamically modulates the central...
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Authors Dr. Shweta Patel, Prof Mukesh Tiwari , Prof. Jaikaran Singh
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Page No. 17 to 20

OFDM is one of the most popular modulation techniques that is been widely used in most of the wireless and wired communication links. The OFDM architecture consists of QAM modulator and orthogonal frequency modulator. In this work we propose DMWT based orthogonal frequency modulator for achieving higher BER. The IDMWT architecture is designed considering N=4, thus the preprocessing unit ...
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Authors Dr. Anitha.K, Dr.Dharmistan.K.Varugheese, Dr N.J.R.Muniraj
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Page No. 31 to 36

future Wireless communication requires high performance and high speed integrated data, audio, video and multimedia services. This performance is achieved using discrete wavelet transforms in terms of ISI and bandwidth compatibility over FFT based OFDM. Where FFT based OFDM has very compact spectral utilization which cannot satisfy the future needs. This project proposes implementation o...
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Authors Dr. Anitha.K, Dr.Dharmistan.K.Varugheese, Dr N.J.R.Muniraj
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Page No. 1 to 8

This paper presents a free space wire antenna having two larger bandwidths with satisfactory forward gain, return loss and VSWR. With center frequency 914MHz the antenna provides a bandwidth 174MHz from 880MHz to 1054MHz. Another band lies between 1478MHz and 1540MHz range with center frequency 1508MHz. These two larger bandwidths enable the antenna to support a wide range of wireless ap...
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Authors Md. Jobayer Hossain, M. A. Masud Khan, Kawser Hossain
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Page No. 21 to 24

Image compression is one of the major applications in image processing that imposes greater design challenges for VLSI design engineers in design and development of low power and high speed architectures. DWT is used in image compression for transformation of image from spatial to frequency domain. In this paper, DWT architecture based on lifting scheme is considered and dynamic power re...
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Authors Dr. C.Chandrasekhar, Dr. S.Narayana Reddy
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Page No. 25 to 35

Orthogonal Frequency Division Multiplexing (OFDM) is a promising technique for high data rate wireless communications because it can combat inter-symbol interference caused by the dispersive fading of wireless channels. A FDM channel is like water flow out of a faucet, in contrast the OFDM signal is like a shower. In a faucet all water comes in one big stream and cannot be subdivided. OF...
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Authors Er. Vipin Mittal, Prof. S.R. Mittal
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Page No. 43 to 48

It is often required to compute the power consumed by an application to avoid later surprises of low battery life, or high temperature a device reaches while running the application; potentially damaging the device. There are three ways to find power consumed by a system for executing a particular application. 1) Run application on a reference board and measure the power dissipated. 2) S...
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Authors Mr. Nishant Kumar, Rahul Johari
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Page No. 39 to 42