Computer Science (Scholarly Publications): Recent submissions

Now showing items 1361-1380 of 1420

    • Cost study of dynamically transparent networks 

      DOYLE, LINDA; O'MAHONY, DONAL EDWARD (Optical Society of America, 2008)
      The network equipment cost benefit of dynamic wavelength routing is compared with point-to-point IP networks and static wavelength routing in a simple ring topology with variable network traffic loading.

    • Analysing the security threats against network convergence architectures 

      ARGYROUDIS, PATROKLOS; DOYLE, LINDA; O'MAHONY, DONAL EDWARD (IEEE Computer Society Press, 2007)
      Current research trends in networks and telecommunications suggest that future architectures will aim for the convergence not only of fixed and mobile infrastructures, but also of different network layer technologies. ...

    • Architectures for person to person communications in disaggregated networks 

      ARGYROUDIS, PATROKLOS; DOYLE, LINDA; O'MAHONY, DONAL EDWARD (IEEE, 2006)
      Current telecommunications systems allocate identifiers to devices, and end-points. While this has worked well thus far, we believe that as more devices are used to access these systems, people have a tendency to be mobile ...

    • Ad hoc innovation: distributed decision making in ad hoc networks 

      DOYLE, LINDA; FORDE, TIM; O'MAHONY, DONAL EDWARD (IEEE, 2006)
      Mobile ad hoc networks by their nature are highly adaptive systems that can come into existence on an as needed basis. They can grow, reduce in size, fragment, and dismantle as desired. The dynamic and very flexible nature ...

    • A testbed demonstrating optical IP switching in disaggregated network architecture 

      DOYLE, LINDA; O'MAHONY, DONAL EDWARD (IEEE, 2006)
      The lack of a unified control plane does not allow current optical networks to dynamically provision new optical paths. The IETF standardization body has proposed the generalized multi-protocol label switching standard as ...

    • Multiparty micropayments for ad hoc networks 

      O'MAHONY, DONAL; TEWARI, HITESH (2003)
      The majority of ad hoc networks and their associated applications have been designed with closed user groups in mind. In such scenarios all the nodes in the network usually belong to a single authority and are configured ...

    • Fluid wireless -dynamic spectrum allocation and spectrum-monitoring application using reconfigurable radio and OFDM 

      DOYLE, LINDA; NOLAN, KEITH EDWARD; O'MAHONY, DONAL EDWARD (2005)

    • Towards flexible authorization management 

      ARGYROUDIS, PATROKLOS; O'MAHONY, DONAL EDWARD (IEEE, 2005)
      During the last years there have been a lot of proposals in the literature for systems that attempt to manage the process of trust establishment. However, the engineering details related to the exchange and negotiation of ...

    • Wireless Background Noise in the Wi-Fi Spectrum 

      Bernath, G.; Steichen, B.; FU, BO; STEICHEN, BEN; WEBER, STEFAN (IEEE, 2008)

    • The CanonicalProducer: an instrument monitoring component of the Relational Grid Monitoring Architecture (R-GMA) 

      COGHLAN, BRIAN ARTHUR; KENNY, STUART; O'CALLAGHAN, DAVID; Byrom, Rob; Cooke, Andrew; Cordenonsi, Roney; Cornwall, Linda; Datta, Ari; Djaoui, Abdeslem; Field, Laurence; Fisher, Steve; Hicks, Steve; Kenny, Stuart; Magowan, James; Nutt, Werner; O'Callaghan, David; Oevers, Manfred; Podhorszki, Norbert; Ryan, John; Soni, Manish; Taylor, Paul; Wilson, Antony; Zhu, Xiaomei (ISBN 0-7695-220-6, IEEE, 2004)
      We describe how the R-GMA (Relational Grid Monitoring Architecture) can be used to allow for instrument monitoring in a Grid environment. The R-GMA has been developed within the European DataGrid Project (EDG) as a Grid ...

    • Bridging secure WebCom and European DataGrid security for multiple VOs over multiple grids 

      COGHLAN, BRIAN ARTHUR; O'CALLAGHAN, DAVID (IEEE, 2004)
      Secure job submission across multiple virtual organisations becomes more important as Grids proliferate. WebCom-G will bring together the condensed graph model of computing and existing Grid software from the European ...

    • A standards-based architecture for grid service management 

      COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; WALSH, JOHN (IEEE Computer Society Press, 2007)
      Managing the availability of services is an essential task in ensuring the availability of a grid infrastructure. This project aims to take the next step in the monitoring and management of grid computing systems by ...

    • A prototype of a social and economic based resource allocation system in grid computing 

      COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; PIERANTONI, GABRIELE; COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; PIERANTONI, GABRIELE (IEEE Computer Society Press, 2007)
      Nowadays the grid community is facing complex challenges. Among them three are particularly interesting: the existence of many different grid middlewares; the increasing complexity of the submitted jobs; and the many ...

    • An agent-based approach to grid service monitoring 

      COGHLAN, BRIAN ARTHUR; WALSH, JOHN (IEEE, 2006)
      The centralised management of distributed computing infrastructures presents a number of considerable challenges, not least of which is the effective monitoring of physical resources and middleware components to provide ...

    • On-demand trust evaluation 

      COGHLAN, BRIAN ARTHUR; O'CALLAGHAN, DAVID (IEEE, 2006)
      Security is a critical factor in interoperability of grid middleware. There is an opportunity to automate the trust evaluation and accreditation process for grid certification authorities to allow continuous evaluation ...

    • GridBuilder: A tool for creating virtual Grid testbeds 

      CHILDS, STEPHEN; COGHLAN, BRIAN ARTHUR; McCandless, Jason (IEEE, 2006)
      Grid software developers and Grid site administrators both require realistic testbeds where they can test applications and middleware before deployment on production infrastructure. Such testbeds should be dynamically ...

    • Using hyperbolic geometry for visualisation of concept spaces for adaptive e-learning 

      CASSIDY, KATHRYN; COGHLAN, BRIAN ARTHUR; DAGGER, DECLAN; WALSH, JOHN (2006)
      The Concept Space is an important part of an adaptive eLearning course. Understanding its structure from a traditional concept map is not, however, always straightforward. Hyperbolic trees are one alternative representation ...

    • New frontiers for grid applications 

      COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; PIERANTONI, GABRIELE; RYAN, JOHN P (2006)
      Grid research, rooted in distributed and high performance computing, started in late 90's when scientists around the world acknowledged the need to establish an infrastructure to support their collaborative research on ...

    • Evaluating LTP-T: A DTN-Friendly Transport Protocol 

      CAHILL, VINNY; FARRELL, STEPHEN (2007)
      The Licklider Transmission Protocol (LTP) is a delay-tolerant point-to-point protocol being developed by the Delay-Tolerant Networking Research Group (DTNRG). LTP-Transport is an extension to LTP that provides end-to-end ...

    • High-level application development is realistic for wireless sensor networks 

      CAHILL, VINNY (IEEE, 2007)
      Programming Wireless Sensor Network (WSN) applications is known to be a difficult task. Part of the problem is that the resource limitations of typical WSN nodes force programmers to use relatively low-level techniques to ...