Digital Commons Network^™

Design And Implementation Of A 10 Gigabit Ethernet Xaui Test Systems, Meghana Reddy Kundoor

Master's Theses and Capstones

10 Gigabit Ethernet has been standardized (IEEE 802.3ae), and products based on this standard are being deployed to interconnect MANs, WANs, Storage Area Networks, and very high speed LANs. The XAUI portion of the standard is primarily concerned with short range (up to 50 cm) chip-to-chip communication across printed circuit board traces. The UNH-IOL 10 Gigabit Ethernet Consortium, an industry-supported organization, performs PHY layer testing on products using a test system that has been partially implemented on a Xilinx ML321 evaluation board using the Virtex II-Pro FPGA.

A new implementation of the 10 Gigabit Ethernet XAUI test system on the …

Volume Visualization Of Time-Varying Data Using Parallel, Multiresolution And Adaptive-Resolution Techniques, Sadaf Shams

Master's Theses and Capstones

This paper presents a parallel rendering approach that allows high-quality visualization of large time-varying volume datasets. Multiresolution and adaptive-resolution techniques are also incorporated to improve the efficiency of the rendering. Three basic steps are needed to implement this kind of an application. First we divide the task through decomposition of data. This decomposition can be either temporal or spatial or a mix of both. After data has been divided, each of the data portions is rendered by a separate processor to create sub-images or frames. Finally these sub-images or frames are assembled together into a final image or animation. After …

Performance Evaluation Of Tcp Over Ieee 80211 Wlans, Sachin Goel

Master's Theses and Capstones

Transmission Control Protocol (TCP) is a communication protocol that is used to provide reliable data delivery between hosts. As TCP is the most highly used transport-layer protocol, many have worked on addressing the issue of performance. Performance issues have been studied in various environments, especially when using 802.11 Wireless Local Area Networks (WLANs). Wireless networks are prone to a higher number of packets loss and corruption. 802.11 WLANs have an equivalently fast acknowledgement mechanism as TCP to ensure reliability of traffic over it. This duplication of functionality between TCP and 802.11 WLAN creates unexpected behaviors that can result in high …

Augmented Reality Device For First Response Scenarios, Robert Andrzej Bogucki

Master's Theses and Capstones

A prototype of a wearable computer system is proposed and implemented using commercial off-shelf components. The system is designed to allow the user to access location-specific information about an environment, and to provide capability for user tracking. Areas of applicability include primarily first response scenarios, with possible applications in maintenance or construction of buildings and other structures. Necessary preparation of the target environment prior to system's deployment is limited to noninvasive labeling using optical fiducial markers. The system relies on computational vision methods for registration of labels and user position. With the system the user has access to on-demand information …

Comparing The Xam Api With File System Programming, Stephen J. Todd

Master's Theses and Capstones

XAM is an application programming interface (API) currently being standardized by the Storage Networking Industry Association (SNIA). XAM stands for "eXtensible Access Method". The XAM API will allow application developers to store content on a new class of storage systems known as "fixed-content" storage systems. This new class of storage system is optimized for the storage and retrieval of unstructured data that changes infrequently.

While it is anticipated that SNIA will eventually ratify a XAM application programmer's interface (API), it is important that the new API presents an interface that is useful yet offers the richness of the XAM protocol …