Digital Commons Network^™

Pulsar: Design And Simulation Methodology For Dynamic Bandwidth Allocation In Photonic Network-On-Chip Architectures In Heterogeneous Multicore Systems, Kwadwo Opong-Mensah

Theses

As the computing industry moved toward faster and more energy-efficient solutions, multicore computers proved to be dependable. Soon after, the Network-on-Chip (NoC) paradigm made headway as an effective method of connecting multiple cores on a single chip. These on-chip networks have been used to relay communication between homogeneous and heterogeneous sets of cores and core clusters. However, the variation in bandwidth requirements of heterogeneous systems is often neglected. Therefore, at a given moment, bandwidth may be in excess at one node while it is insufficient at another leading to lower performance and higher energy costs. This work proposes and examines …

A Comprehensive Assessment Of Cloud Computing For Smart Grid Applications:A Multi-Perspectives Framework, Nina Chaichi, Joao Lavoie, Soheil Zarrin, Rafaa Khalifa, Felix Sue

Engineering and Technology Management Faculty Publications and Presentations

The IT system is one of the key infrastructures in order to add intelligent feature to power grids. Many papers anticipated a rocky road for IT system integration into power system and suggested the cloud computing adoption as a smart grid IT infrastructure to smooth the integration. Though cloud computing could overcome some of these integration challenges, it would bring some of its own. This study intends to give more insight to decision makers or utility companies to make a better decision whether to adopt cloud computing with regards to their needs or not. In the problem statement section is …

A Framework Architecture For Student Learning In Distributed Embedded Systems, William L. Honig, Konstantin Läufer, George K. Thiruvathukal

Computer Science: Faculty Publications and Other Works

Academic courses focused on individual microcomputers or client/server applications are no longer sufficient for students to develop knowledge in embedded systems. Current and near-term industrial systems employ multiple interacting components and new network and security approaches; hence, academic preparation requires teaching students to develop realistic projects comparable to these real-world products. However, the complexity, breadth, and technical variations of these real-world products are difficult to reproduce in the classroom. This paper outlines preliminary work on a framework architecture suitable for academic teaching of modern embedded systems including the Internet of Things. It defines four layers, two of which are at …

Accelerating Reconfiguration Of Network Anomaly Detection Systems, William C. Edmonds Jr.

Theses

Reducing the time required to keep an anomaly-based network intrusion detection system (NIDS) up-to-date with the continuously changing web server features is of the utmost importance to keep intrusion detection as accurate as possible. Web applications and content changes frequently on web servers to keep their users interested and returning. This frequent updating poses an interesting problem with regards to anomaly-based network intrusion detection systems (NIDS) as they rely on knowing what normal traffic patterns look like. Retraining and reconfiguration to adapt to new applications or features of a website is highly advised to maintain accurate detection performance. Training an …

Passive Cooling Of Pentium 4 And I3 Processors, Cuong Nguyen

Theses

Thermal management for computer processors is always one of main concerns for computer manufacturers and users. Current cooling techniques based on forced air convection supported by an electric fan. This method has some disadvantages such as depending on air convection, creating noise, vibration, dust, and power consumption. This thesis is to examine detailed passive cooling technique for computer processors with the use of liquid Fluorinert FC-72 as a coolant. Two types of the Pentium 4 and one Core i3 processors were investigated using passive cooling technique. No-load and full-load operations of those processors were compared. The no-load and full-load operations …

Fast Bitwise Pattern-Matching Algorithm For Dna Sequences On Modern Hardware, Giyasetti̇n Özcan, Osman Sabri̇ Ünsal

Turkish Journal of Electrical Engineering and Computer Sciences

We introduce a fast bitwise exact pattern-matching algorithm, which speeds up short-length pattern searches on large-sized DNA databases. Our contributions are two-fold. First, we introduce a novel exact matching algorithm designed specifically for modern processor architectures. Second, we conduct a detailed comparative performance analysis of bitwise exact matching algorithms by utilizing hardware counters. Our algorithmic technique is based on condensed bitwise operators and multifunction variables, which minimize register spills and instruction counts during searches. In addition, the technique aims to efficiently utilize CPU branch predictors and to ensure smooth instruction flow through the processor pipeline. Analyzing letter occurrence probability estimations …

Stargrazer One: A New Architecture For Distributed Maximum Power Point Tracking Of Solar Photovoltaic Sources, Edgard Munoz-Coreas

Theses and Dissertations--Electrical and Computer Engineering

The yield from a solar photovoltaic (PV) source is dependent on factors such as light and temperature. A control system called a maximum power point tracker (MPPT) ensures that the yield from a solar PV source is maximized in spite of these factors. This thesis presents a novel implementation of a perturb and observe (PO) MPPT.

The implementation uses a switched capacitor step down converter and a custom digital circuit implementation of the PO algorithm. Working in tandem, the switched capacitor step down converter and the custom digital circuit implementation were able to successfully track the maximum power point of …