university of trento

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Dynamic Load Balancing in WDM Networks

This paper new load balancing techniques are proposed based on IP-like routing, where the forwarding mechanism is only driven by the destination address. The aim of this work is to consider the applicability of this approach in the context of optical networks. The proposed algorithm (RSNE - Reverse Subtree Neighborhood...

Tags: Technique, University Of Trento, Load Balancing, WDM, Local Search, Productivity, Search

White papers 2008-01-01

TCP Westwood+ Enhancement in High-Speed Long-Distance Networks

In this paper, mechanisms to enhance the performance of TCP Westwood+ in the presence of a large Bandwidth-Delay Product are studied. In particular, the employment of a logarithmic function for congestion window increase in the absence of packet losses is proposed. Extensive numerical simulations, carried out by using ns-2, show...

Tags: University Of Trento, TCP, Tcp/Ip, Performance Management, Networking, Human Resources, Workforce Management

White papers 2007-01-01

A Web Service Approach to Geographical Data Distribution Among Public Administrations

In this paper a Service-Oriented Architecture SOA is proposed to support the interaction with legacy Geographical Information Systems GIS and the implementation of value added data sharing services. In particular, the author base the proposed architecture both on the standardization effort carried out by the Open Geospatial Consortium OGC and...

Tags: Web, University Of Trento, Administration, Web Service, SOA, Back-office, Architecture, Data Sharing, Service-Oriented Architecture (SOA), Web Services, Application Integration, Middleware, Operational Accounting, Enterprise Software, Software, Software Development, Software/Web Development, Finance

White papers 2006-11-09

Towards a Mathematical Foundation for Service-Oriented Applications Design

Leveraging service oriented programming paradigm would significantly affect the way people build software systems. However, to achieve this goal a solid software design methodology should be grounded on proper mathematical foundations, specific service-oriented principles, concepts and patterns. This paper contributes to the above goal proposing a lightweight, but complete, mathematical...

Tags: Software, University Of Trento, Programming, Development Tools, Tools & Techniques, Software Development, Software/Web Development, Management

White papers 2006-08-15

Bidirectional Optical Ring Network Having Enhanced Load Balancing and Protection

Massive growth of the Internet traffic in last decades motivated the design of high-speed optical network for traffic aggregation from different access technologies. The network architecture proposed in this paper is a low-cost flexible solution consisting of two dual buses located over a physical bidirectional ring network topology. OTDM technology...

Tags: University Of Trento, Network, Load Balancing, Networking

White papers 2006-05-18

RDF and Contexts: Use of SPARQL and Named Graphs to Achieve Contextualization

The very simple structure of the RDF data model and semantics can lead to a number of issues when more complex scenarios are supposed to be represented in RDF. Aspects such as temporary evolution of a knowledge base, relevance and trust require more than just a model that consists of...

Tags: University Of Trento, RDF, XML, Internet, Software/Web Development, Web Development

White papers 2006-04-30

ToothAgent: Brushing on Your Behalf

Common interests among people in different communities and levels are driving plenty of research groups and industry developers to pay more attention to such a vast zone of opportunities. This paper introduces a new form of previously implemented architecture: ToothAgent, the authors perform a simple amplification process that helps concatenating...

Tags: University Of Trento, Strategy, Management

White papers 2005-12-01

Cross-Layer Adaptation of MPEG4 Video Streaming Over Wireless Networks Using Unequal Error Protection and MC-CDMA

A novel methodology for the efficient multiplexing and streaming of MPEG4 video over wireless networks is presented and discussed. The proposed cross-layer adaptation jointly exploits Variable-BitRate VBR Multi-Carrier Code-Division Multiplexing (MC-CDM) and MPEG4 Fine-Grain-Scalability FGS in order to provide unequal error protection to the transmitted video stream. A shared bandwidth...

Tags: Bandwidth, University Of Trento, Network, MPEG-4, Wireless Network, Digital Video, Digital Media, Wireless, Personal Technology, Consumer Electronics

White papers 2005-11-01

Towards a Distributed Architecture for Value Added Services to Digital Libraries

Scientific communities are relying more and more on value added services offered by different systems on top of digital document repositories and libraries. Current systems, like CiteSeer and Google Scholar, offer important services to these communities but show their limitations when it comes to scalability, decentralize control and plan for...

Tags: University Of Trento, Service, Service-Oriented Architecture (SOA), Web Services, Middleware, Enterprise Software, Software

White papers 2005-06-25

Design and Development Approaches for Creating a Mobile Learning System - Mobile ELDIT

The paper aims to describe in some details a system called Mobile Eldit (m-Eldit) that is under development at the University of Trento, Italy. It is a mobile version that can be accessed from mobile devices like PDAs, of an existing language learning platform, developed at the European Academy of...

Tags: University Of Trento, Mobile, Advertising & Promotion, Marketing

White papers 2004-11-15

Scheduling in 802.11e: Open-Loop or Closed-Loop?

Scheduling in 802.11e networks is managed by the Hybrid Coordination Function HCF, located within the access point. HCF has access both to traffic descriptions TSPEC and to feedback information sent in every frame by stations. This paper discusses the use of open-loop or closed-loop scheduling; the first one is based...

Tags: University Of Trento, Hybrid Coordination Function, Engineering, Performance Management, Wireless, Human Resources, Workforce Management

White papers

Additional Resources

Techies choose Obama - by a landslide

If techies could choose the next President, Obama would win in a landslide. Checking donors from 10 large tech companies, including Apple, Dell, Google and Microsoft, over 90% of the donations support the senator from Illinois. Why does high-tech love Obama? First the numbers The...

Tags: Landslide, Broadband, Obama, McCain, Telecommunications, Broadband Internet, Network Technology, Telecom & Utilities, Networking, Robin Harris

Blog posts 2008-10-05

Using space robots to fix ailing satellites?

According to Canadian engineers at Queen's University, there are now more than 8,000 satellites in orbit around the Earth. Of course, if they stop to work correctly, these satellites will not be able to be repaired from the ground and will become space junk. So these researchers have developed a...

Tags: Robot, Satellite, Network Technology, Networking, Roland Piquepaille

Blog posts 2008-10-04

When it comes to China, is Skype the new Yahoo?

Any major Western company doing business in China is collaborating with the government to some degree. We know this. Chinese citizens know this. The best case scenario is probably Microsoft or Google's operations where access to certain information is limited. The worst case, until now, has been Yahoo's explicit cooperation...

Tags: China, Yahoo! Inc., Skype Technologies S.A., Tom, Government, Blogging, Vertical Industries, Wireless, Internet, Enterprise Software, Software, Richard Koman

Blog posts 2008-10-03

Gadget nostalgia: Five things I had and five things I have now

Gadget nostalgia: Five things I had and five things I have nowRE: Gadget nostalgia: Five things I had and five things I have nowMy friend, you are correct. Kudos to you, and thanks for the heads-up.I think the slash in the C:/ prompt is backwards...C: instead of C:/ in PC...

Tags: Keyboards, nostalgia, Gadget nostalgia, C:","ZDDF.DT.29.52609

Discussion threads 2008-10-02

Semantic guardians for our computers?

If your computer has never crashed, it's because it has been built on another planet. The microprocessors we use are faster and more complex year after year, increasing the risks of being hit by 'functional bugs.' This is why University of Michigan (U-M) researchers have started to develop a system...

Tags: Monitor, Researcher, Computer, Chip, Semiconductors, Network Technology, Processors, Hardware, Networking, Components, Roland Piquepaille

Blog posts 2008-10-02

News to know: Cloud wars; Apple; Google; China is watching you

Here are today's notable headlines. You can get News To Know via email alert and RSS daily: Mary Jo Foley: Amazon launches pre-emptive strike against Microsoft's planned cloud platform. Techmeme A new mystery: What's Microsoft got up its Office Live sleeve? Zack Whittaker:...

Tags: Google Inc., Facebook, Larry Dignan, Apple Inc., Microsoft Corp., IPO, Robots, Linux, E-mail, Digital Media, Financial Services, Emerging Technologies, Operating Systems, Software, Online Communications, Consumer Electronics, Personal Technology

Blog posts 2008-10-02

Chinese monitoring Tom-Skype messages

China is running a massive operation to track and store text messages sent over Tom-Skype, a joint venture between a Chinese wireless provider and eBay-owned Skype, The New York Times reports. China has about one million censored messages, many of which contain personally identifiable information, according to...

Tags: Message, China, Monitoring, Skype Technologies S.A., eBay Inc., Government, Vertical Industries, Web Servers, Security, Servers, Wireless, Enterprise Software, Software, Internet, Hardware, Richard Koman

Blog posts 2008-10-01

Another setback for university P2P

Another setback for university P2PUm no.They should NOT kill P2P just because a criminal and inept organization wants to subpoena the daylights out of everyone. What they fail to realize is what ever they think they will produce from it will be negated by the fact they cannot conclusively prove...

Tags: Peer to peer (P2P), P2P

Discussion threads 2008-10-01

Another setback for university P2P

Last week, a federal judge dismissed the University of Oregon's arguments that the RIAA's attempts to obtain information on student file sharers was unduly burdensome. According to Ars Technica, the judge also ruled that the school did not receive protection under the Digital Millenium Copyright Act, since none of...

Tags: P2P, University, RIAA, Litigation, Peer To Peer (P2P), Digital Rights Management (DRM), Business Operations, Internet, Security, Christopher Dawson

Blog posts 2008-10-01