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Full-Text Articles in Engineering

Digital Watermarking Security, Jonathan Blake, Shahram Latifi Sep 2011

Digital Watermarking Security, Jonathan Blake, Shahram Latifi

Electrical & Computer Engineering Faculty Research

As creative works (e.g. books, films, music, photographs) become increasingly available in digital formats in a highly connected world, it also becomes increasingly difficult to secure intellectual property rights. Digital watermarking is one potential technology to aid intellectual property owners in controlling and tracking the use of their works. Surveys the state of digital watermarking research and examines the attacks that the technology faces and how it fares against them. Digital watermarking is an inherently difficult design problem subject to many constraints. The technology currently faces an uphill battle to be secure against relatively simple attacks.


Software Development Approach For Discrete Simulators, Grzegorz Chmaj, Dawid Maksymilian Zydek Aug 2011

Software Development Approach For Discrete Simulators, Grzegorz Chmaj, Dawid Maksymilian Zydek

Electrical & Computer Engineering Faculty Research

Simulation is the most common approach to perform the problem research. Among several types of simulation, the most common way is the discrete simulation, which assumes the division of the time scale into fixed length time slots. Depending on investigated problem, simulation packages may be used or it could be necessary to design and create own simulation system. In this paper, we propose the complete pre-study scheme and the most commonly appearing implementation problems with suggested solutions. We also describe how to implement the exemplary simulator in C++.


On Prolonging Network Lifetime Through Load-Similar Node Deployment In Wireless Sensor Networks, Qiao-Qin Li, Haigang Gong, Ming Liu, Mei Yang, Jun Zheng Mar 2011

On Prolonging Network Lifetime Through Load-Similar Node Deployment In Wireless Sensor Networks, Qiao-Qin Li, Haigang Gong, Ming Liu, Mei Yang, Jun Zheng

Electrical & Computer Engineering Faculty Research

This paper is focused on the study of the energy hole problem in the Progressive Multi-hop Rotational Clustered (PMRC)-structure, a highly scalable wireless sensor network (WSN) architecture. Based on an analysis on the traffic load distribution in PMRC-based WSNs, we propose a novel load-similar node distribution strategy combined with the Minimum Overlapping Layers (MOL) scheme to address the energy hole problem in PMRC-based WSNs. In this strategy, sensor nodes are deployed in the network area according to the load distribution. That is, more nodes shall be deployed in the range where the average load is higher, and then the loads …