Since communication signals are publicly exposed while they transmit across space, Ad Hoc Networks (MANETs) where secured is most crucial. Unfortunately, these systems more open to intrusions that range from passive listening aggressive spying. A Hybrid Team centric Re-Key Control Framework (HT-RCF) suggests this research examines private group in Adhoc environments. Each selects a Group Manage...

When wireless networks are connected to wired networks, mobile users can gain access to the resources stored on the wired networks. Handovers originally used in wireless networks must be extended if the wired network is connection-oriented, such as ATM and frame relay. In the new environment, if a mobile device is moving out of its current cell, radio signals and connections must be switched ac...

Due to their very small contact areas and low cost, swipe fingerprint sensors provide the very convenient and reliable fingerprint security solutions and are being increasingly used for mobile phones, PDAs, portable computers and security applications. In this paper, the minimum mean absolute error as the registration criterion is used to find an integer translation shift while the extension of...

Introduction Conclusions References

At present, dealing with the piracy and tampering of images has become a notable challenge, due to the presence of smart mobile gadgets. In this paper, we propose a novel watermarking algorithm based on non-subsampled contourlet transform (NSCT) for improving the security aspects of such images. Moreover, the fusion of feature searching approach with watermarking methods has gained prominence i...

A solution adaptive scheme with directional multigrid for viscous computations on hybrid grids is presented. The ow domain is discretized with prismatic and tetrahedral elements. The use of hybrid grid enables the solver to compute accurate solutions with relatively less memory requirement than a fully unstructured grid. Further, employing prisms to discretize the full Navier-Stokes equations a...