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Articles 31 - 32 of 32
Full-Text Articles in Systems and Communications
A Distributed Ai Approach For Large-Scale Wlan Design, Alan Mcgibney
A Distributed Ai Approach For Large-Scale Wlan Design, Alan Mcgibney
Theses
The recent dramatic trend towards always-on-connectivity has driven the need for mobile ubiquitous computing environments with the advent of the Wireless Local Area Network (WLAN) seeing a shift from traditional wired networks to wireless networking. A WLAN typically contains a number of access points that allow wireless enabled clients access information and network resources such as the internet without the need for wires, offering flexibility and mobility to the users. Initial wireless networks were convenience based allowing users access to the primary wired network, and involved little planning prior to roll-out. The proliferation of low cost wireless devices combined wdth …
Covert Encryption And Document Authentication Using Texture Coding, Jonathan Blackledge, Mary Hallot
Covert Encryption And Document Authentication Using Texture Coding, Jonathan Blackledge, Mary Hallot
Articles
With the improvements in the quality of Commercial-Off-The-Shelf (COTS) printing and scanning devices, the ability to counterfeit documents has become a widespread problem. Consequently, there has been an increasing demand to develop digital watermarking techniques which can be applied to both electronic and printed images (and documents) that can be authenticated, prevent unauthorized copying and withstand abuse and degradation. In this paper , a new approach to digital watermarking is presented and a range of possible applications are considered. The process is defined by using concepts and techniques borrowed from Cryptography. It is based on computing a 'scramble image' by …