Journal of Communication Engineering & Systems
Volume 4, Issue 1 (2014)
Published
Table of contents
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Comparative Analysis of Digital Image Watermarking using DCT and DWT
Abstract: AbstractWatermarking is a technique to hide information into digital data and provides security against intentional and unintentional attack. It is a very important and emerging field which helps to protect ownership of digital information. Watermarking is the process of inserting or hiding information behind cover data. In this paper we discussed about two digital watermarking techniques, Discrete Cosine Transform (DCT) and discrete wavelet Transform (DWT). The parameters to test robustness …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 1–5 Read article
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GSM based Multiuser E-Notice Board using Wireless Technology
Abstract: AbstractWireless technology is now taking over the entire world. It has helped in shrinking the world. GSM technology is the most popular wireless technology which is now fastest growing technology in the electronic industry. Advancement in technology has brought about digitization to the core. Even the billing system, attendance system, health monitoring, etc., have all got digitized and so are the advertisement boards and the announcement boards. The existing system …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 13–20 Read article
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Improvement of BER in Wavelet Transform-based OFDM System with Kalman Filter
Abstract: AbstractWe know that bandwidth is the most precious commodity in all communication systems such as 2G, 3G and 4G. Each service provider is now searching how to accommodate a large number of users within a limited allocated bandwidth, In order to increase the data rate of wireless medium with higher performance, orthogonal frequency division multiplexing (OFDM) is chosen. In this paper, the bit error rate analysis (BER) of discrete wavelet …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 21–28 Read article
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Incorporating Mobility to Sensor Networks during Node Failure and Their Analysis for Radio Propagation Models
Abstract: AbstractWireless sensor networks are expected to find wide applicability and increasing deployment in the near future. It consists of spatially distributed autonomous sensors to monitor physical or environmental conditions and to cooperatively pass their data through the network to a main location. The more modern networks are bi-directional, also enabling control of sensor activity. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance, many …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 29–35 Read article
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Compare Three Reactive Routing Protocols in Grid based Cluster Wireless Sensor Network using Qualnet Simulator
Abstract: AbstractThis paper is comparing the performance of three different routing protocols in grid based clustering for wireless sensor network. Sensor network is keeping limited energy of sensor node send limited battery power. However the main task of sensor network energy consumption for sensor nodes. Furthermore grid based sensor working depend on location based that is divided into different parts. In grid based wireless sensor network, cluster head it works like …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 6–12 Read article