Wireless Sensor Networks through the use of their sensor nodes allow the monitoring of wide and remote terrains with great precision without the intervention of human operators. We have developed a methodology to examine trade-offs when establishing a wireless sensor network using a multiobjective optimization approach. The non-dominated sorting genetic algorithm II was implemented. Solutions were evaluated based on three objectives with the goal of minimizing the sensors' cost, maximizing the area of coverage of the sensor field and minimizing the overlapping coverage between the sensor nodes. Sample results are provided and discussed.

Security is always of a great concern for both organizations and individuals. The concept of biometric measures has been used to identify individuals as long as we have existed and has evolved with time. Behavioral biometrics can be further enhanced with the use of haptic devices. This paper presents a system that uses a haptic device to capture behavioral biometric features. The system then uses a fuzzy logic controller to verify user identification. This study shows that even with a simple interface, effective security could be achieved. Possible applications include online (signature) recognition or access control to highly restricted areas and/or data within an organization.

For the past decade, there have been numerous research works focusing on the protection of digital images, audio, video, 3D virtual scenes, and software data from unauthorized use and distribution. With the emerging technology of the MPEG-4 standard, MPEG-4 scenes that may include images, video, audio, and 3D objects can easily be built using the text-based MPEG-4 XMT standard. XMT allows content authors to exchange their content with other authors, tools, or service providers and facilitates interoperability with MPEG-4, X3D, and SMIL. In order for owners and designers to protect and/or authenticate their work, some form of security needs to be applied into the MPEG-4 XMT structure and its media content. Unlike images or videos, watermarking an XMT structure is not an easy task, since the structure contains no noise components to embed the watermark. This article is the first one proposing a novel robust algorithm for the authentication of a given MPEG-4 XMT structured scene and the location of its multimedia content.