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Jebamalar Tamilselvi, J.
- Analyzing the Performance of Diverse LEACH Algorithms for Wireless Sensor Networks
Abstract Views :135 |
PDF Views:2
Authors
Affiliations
1 Anna University, Chennai, IN
2 Jaya Engineering College, Chennai, Tamil Nadu, IN
3 Pondicherry University, IN
1 Anna University, Chennai, IN
2 Jaya Engineering College, Chennai, Tamil Nadu, IN
3 Pondicherry University, IN
Source
International Journal of Advanced Networking and Applications, Vol 4, No 3 (2012), Pagination: 1610-1615Abstract
Sensor nodes can be used for continuous sensing, location sensing and event detection with the help of different types of sensors such as seismic, thermal, visual, infrared, magnetic, and many gaseous sensors. Sensor networks have wide range of applications including medical, military, home, etc. All these applications involve vigorous wireless communication protocol that is good in reduced energy utilization. A Low Energy Adaptive Clustering Hierarchy (LEACH) algorithm is a protocol designed to obtain energy efficient application specific data aggregation with good performance for the wireless sensor networks. LEACH is a cluster-based routing protocol in which each node has given equal probability to act as cluster head. In this paper, analysis has been done with LEACH protocol and modified LEACH protocols like LEACH-C, and DEEAC. Analyses show that with proper enhancement in the LEACH design, the transmission can enhance the energy efficiency and increase the life time of the sensor node.Keywords
DEEAC, LEACH, LEACH-C, Routing Protocol, Wireless Sensor Networks.Full Text
- A Visible Watermarking Scheme for Digital Images in Frequency Domain
Abstract Views :113 |
PDF Views:8
Authors
Affiliations
1 Anna University, Chennai, IN
2 MCA Department, Jaya Engineering College, Chennai, IN
3 CSE Department, Pondicherry University, Pondicherry, IN
1 Anna University, Chennai, IN
2 MCA Department, Jaya Engineering College, Chennai, IN
3 CSE Department, Pondicherry University, Pondicherry, IN
Source
International Journal of Advanced Networking and Applications, Vol 4, No 3 (2012), Pagination: 1635-1639Abstract
A novel method is proposed for visible watermarking of digital image in frequency domain. The method is based on DCT modification of original image with respect to watermark image. The host image pixels are transformed into frequency coefficients as well as the watermark image pixels are also transformed into frequency coefficients using DCT. The compound mapping function is used to adjust the pixel values close to those of desired visible watermarks. Thus the watermarking is done in frequency domain using compound mapping function. One who has the watermark image and mapping function parameters only can remove the watermark. Thus it enhances the security. Experimental results demonstrate the effectiveness of the proposed approach.Keywords
Watermarking, Steganography, Compound Mapping.Full Text