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Energy-Balancing Strategies for Wireless Sensor Networks

The lifetime of wireless sensor network is crucial, since autonomous operation must be guaranteed over an extended period. As all the sensor data has to be forwarded to an observer via multi-hop routing, the traffic pattern is highly nonuniform, putting a high burden on the sensor nodes close to the...

Tags: Network, Wireless Sensor Network, Hop, Wireless, University Of Notre Dame, Networking

White papers 2009-01-01

Troubleshooting Distributed Systems Via Data Mining

Through massive parallelism, distributed systems enable the multiplication of productivity. Unfortunately, increasing the scale of available machines to users will also multiply debugging when failure occurs. Data mining allows the extraction of patterns within large amounts of data and therefore forms the foundation for a useful method of debugging, particularly...

Tags: Distributed System, University Of Notre Dame, Data Mining, Business Intelligence, Marketing Research, Enterprise Software, Software, Data Management, Marketing

White papers 2009-01-01

All-Pairs: An Abstraction for Data-Intensive Cloud Computing

Although modern parallel and distributed computing systems provide easy access to large amounts of computing power, it is not always easy for non-expert users to harness these large systems effectively. A large workload composed in what seems to be the obvious way by a naive user may accidentally abuse shared...

Tags: Distributed Computing, Abstraction, University Of Notre Dame, Cloud Computing, Network Technology, Networking

White papers 2008-01-29

Arbutus: Network-Layer Load Balancing for Wireless Sensor Networks

The hot spot problem is a typical byproduct of the many-to-one traffic pattern that characterizes most wireless sensor networks: the nodes with the best channel to the sink are overloaded with traffic from the rest of the network and experience a faster energy depletion rate than their peers. Routing protocols...

Tags: Network, Wireless Sensor Network, Routing Protocol, Wireless, University Of Notre Dame, Hot Spot Problem, Networking

White papers 2008-01-01

Short Paper: Troubleshooting Distributed Systems Via Data Mining

Through massive parallelism, distributed systems enable the multiplication of productivity. Unfortunately, increasing the scale of available machines to users will also multiply debugging when failure occurs. Data mining allows the extraction of patterns within large amounts of data and therefore forms the foundation for a useful method of debugging, particularly...

Tags: Distributed System, University Of Notre Dame, Data Mining, Business Intelligence, Marketing Research, Enterprise Software, Software, Data Management, Marketing

White papers 2008-01-01

Operating System Support for Space Allocation in Grid Storage Systems

Shared temporary storage space is often the constraining resource for clusters that serve as execution nodes in wide-area distributed systems. At least one large national-scale computing grid has reported a failure rate of as high as thirty percent of submitted jobs, often due to accidentally filled shared storage spaces. Previous...

Tags: Operating System, File System, Allocation, Grid, Storage System, University Of Notre Dame, Storage, Hardware

White papers 2008-01-01

Enhanced Situational Awareness: Application of DDDAS Concepts to Emergency and Disaster Management

The paper describes a prototype emergency and disaster information system designed and implemented using DDDAS concepts. The system is designed to use real-time cell phone calling data from a geographical region, including calling activity - who calls whom, call duration, services in use, and cell phone location information - to...

Tags: Phone, Cell Phone, Disaster Management, University Of Notre Dame, Telecom & Utilities, Cellular Phones, Consumer Electronics, Personal Technology

White papers 2007-05-01

Single-Hop Connectivity in Interference-Limited Hybrid Wireless Networks

This paper considers a hybrid wireless network, in which the low-power nodes collect data and pass it to the data aggregation nodes base stations. The low-power nodes are assumed to form a Poisson point process and communicate to the base stations using spread spectrum. The paper derives bounds to the...

Tags: Base Station, Network, Node, Wireless Network, University Of Notre Dame, Wi-Fi, Wireless

White papers 2007-04-13

Maximum-Likelihood Carrier Frequency Offset Estimation for OFDM Systems in Fading Channels

Carrier Frequency Offset CFO is a major contributor to the inter-carrier - interference in OFDM systems. This effect becomes more sever when compounded by the presence of Doppler fading in wireless channels. This paper presents two maximum-likelihood CFO estimation schemes, one in frequency domain and another in time-domain, both under...

Tags: University Of Notre Dame, Carrier Frequency Offset, OFDM, Wi-Fi, Wireless

White papers 2006-03-09

Dynamic Power Management Using Feedback

The increasing speed and complexity of the microprocessor has brought about a corresponding increase in power consumption. Coupled with relatively small gains in battery capacity over recent years, the importance of intelligent battery management has become paramount. This paper presents a mechanism that takes advantage of feedback about power consumption...

Tags: Power Management, Power Consumption, Battery, University Of Notre Dame, Engineering

White papers

Additional Resources

Notre Dame Central for iPhone 1.0.1 (Mobile)

Notre Dame Central for iPhonel app delivers NBC Sports Live broadcast of aLL university of Notre Dame home football games right to your iPhone or iPod Touch via 3G or WiFi. it features eight live Streaming Notre Dame Home games right on your iPhone, video on Demand clips of full...

Tags: Apple iPhone, NBC Universal Inc., Mobile, Video On Demand (VoD), Games, Smart Phones, Tv & Home Theater, 3G, Broadband Internet, Digital Media, Personal Technology, Home Entertainment, Consumer Electronics, Cellular Phones, Telecommunications

Software downloads 2009-11-17

Paris eGuides 1.0 (Mobile)

Paris eGuides video 3GP for mobile is a package of 5 videos with a map to discover Paris virtually from home or in real time while wondering with a mobile phone when you visit in Paris. You need to transfer the 3GP videos and the image map to your mobile...

Tags: Paris, Mobile, Video, Starmef 7, Paris eGuides Suite, Corporate Communications, Advertising & Promotion, Marketing

Software downloads 2009-02-25

Lighting the way: Three more higher-ed schools embrace LED technology

Three more U.S. colleges have signed up for the LED University program that is backed and publicized by LED technology company Cree. The schools include Indiana's University of Notre Dame, North Carolina's North Carolina State University and Wisconsin's Madison Area Technical College. The installations range from modest...

Tags: Light-emitting Diode, Engineering, Heather Clancy

Blog posts 2008-11-13

Goin' to Chapple- for these three VoIP security tips

Heard of Mike Chapple? No, I didn't think so. But that doesn't mean what he has to say about VoIP security isn't important. It is, very. Chapple has a most interesting CV/resume/set of bonafides. Information security researcher with the National Security Administration and...

Tags: Environment, VoIP Security, Mike Chapple, Telephony, VOIP, Telecommunications, Networking, Russell Shaw

Blog posts 2008-01-16

Recreating cities using online photos

The billion of images available from a site like Flickr has stimulated the imagination of many researchers. After designing tools using Flickr to edit your photos, another team at the University of Washington UW is using our vacation photos to create 3D models of world landmarks. But recreating original scenes...

Tags: 3D, Researcher, Online Photo, Flickr, Photograph, Computer, UW, Productivity, Roland Piquepaille

Blog posts 2007-11-04

eduCam 1.9 (Windows)

View a selection of resizable Webcams from universities including Notre Dame, Purdue, UCLA, USC, and others. Ability to add your own Web site for viewing as well. Click or double-click on the image, or just press G to go to the University Web site. Resizable images up to 1400x1600. Flexible...

Tags: Web, Microsoft Windows, Web Site, Image, Brendan Bellina, Web Site Development, Web Technology, Channel Management, Internet, Marketing

Software downloads 2007-07-06

OU leaves server in hackers' hands for a year

For at least a year, a Ohio University system that contained Social Security numbers belonging to 137,000 people has been under the control of American and overseas hackers, the school's CIO told News.com recently. That's just one of several serious computer breaches at the university, prompting a sweeping overhaul of...

Tags: Avivah Litan, Bill Sams

Blog posts 2006-05-22

What makes schools vulnerable

A ZDNet story, Notre Dame probes hack of computer system, got me thinking about why a university is more susceptible than other institutions to this kind of vulnerability. At Notre Dame, it was a list of donors -- along with social security numbers, credit card numbers and check images --...

Tags: serverS

Blog posts 2006-01-30

Notre Dame probes hack of computer system

Notre Dame probes hack of computer systemWhen will CIO's learn that...This sort of information has no business being accessible outside of a company's firewall, and has no business being accessible at all from the outside?Notre Dame probes hack of computer systemComputer gets hacked and private info stolen, must have been...

Tags: PRODUCTIVITY, SECURITY, Notre-Dame, computer

Discussion threads 2006-01-24