International Journal of Digital Communication and Analog Signals
Volume 2, Issue 2 (2016)
Published
Table of contents
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A Review Paper on OFDM: Basic Concept & Application
Abstract: The main objective of this paper, is to review the work already done associated with channel estimation technique in Orthogonal Frequency-Division Multiplexing (OFDM) effectively mitigates the problem of inter symbol interference (ISI) caused by the delay unfold of wireless channels. Therefore, it has been utilized in many wireless systems and adopted by numerous standards. Throughout this paper, we have presented a comprehensive survey on OFDM for wireless communications and their …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 1–9 Read article
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Review – An approach to steganography technique
Abstract: Steganography is the technique that provides the base for secure communication. It is the art of hiding information in some other means of false medium for making a possible secure communication. The information to be hidden can be of any form such as text, image and video etc. and so the cover medium. Unlike cryptography, in steganography after the data is successfully hidden it is not even visible to the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 10–16 Read article
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Particle Swarm Optimization to enhance Low Resolution Images
Abstract: In digital image processing enhancement of low resolution images is always a priority field. Construction of high resolution image from low resolution images by using discrete wavelet transform (DWT) to decompose the input low resolution image into several sub band images. The resolution of surveillance video frames can be improved by interpolation between pixels to generate a moderate enhancement. A hybrid novel method is used to enhance low resolution images …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 17–21 Read article
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A BRIEF INTRODUCTION TO HOLOGRAPHIC MEMORY
Abstract: Since the leap of civilization from stone age to now that being the industrial and pro digital age mankind has made leaps and bounds of progress in various domains of science and technology. Light has been the backbone for various devices enabling data reading and storage for more than two and a half decades. It all started with the introduction of C.D which could store about 700 MB of data …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 22–25 Read article
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RESEARCH AND IMPLEMENTATION OF QAM SIGNAL USING TEXAS INSTRUMENTS (TMS320C6713)
Abstract: During the last two decades the growth of digital communication and modulation techniques are widely considered in real time application in order to transfer reliable information with high data rate. Since digital modulation is resistible to noise people show interest in adopting it. Though there is various modulation techniques QAM is one of the most commonly used modulation. The QAM has higher efficiency power which results its application in mobile …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 26–32 Read article