Now showing items 1-20 of 21

    • Analysing the characteristics of VoIP traffic 

      He, Qinxia (2007)
      In this study, the characteristics of VoIP traffic in a deployed Cisco VoIP phone system and a SIP based soft phone system are analysed. Traffic was captured in a soft phone system, through which elementary understanding ...
    • Database server workload characterization in an e-commerce environment 

      Liu, Fujian (2005-10-06)
      A typical E-commerce system that is deployed on the Internet has multiple layers that include Web users, Web servers, application servers, and a database server. As the system use and user request frequency increase, ...
    • Dynamic selection of redundant web services 

      Slavova, Svetlana (2007)
      In the domain of Web Services, it is not uncommon to find redundant services that provide functionalities to the clients. Services with the same functionality can be clustered into a group of redundant services. Respectively, ...
    • Enhanced Community-Based Routing for Low-Capacity Pocket Switched Networks 

      rasul, khadija (2013-09-24)
      Sensor devices and the emergent networks that they enable are capable of transmitting information between data sources and a permanent data sink. Since these devices have low-power and intermittent connectivity, latency ...
    • Future effectiveness of centralized and distributed memory architectures for parallel computing systems 

      Chinthamani, Meemakshisundaram Ramanthan (1999-04-01)
      This work is concerned with the question of how current parallel systems would need to evolve in terms of hardware capabilities, architectures, and software control policies, if they are to continue to be useful computing ...
    • The Impact of Spatial Resolution and Representation on Human Mobility Predictability 

      Qian, Weicheng (2013-01-11)
      The study of human mobility patterns is important for both understanding human behaviour, a social phenomenon and to simulate infection transmission. Factors such as geometry representation, granularity, missing data and ...
    • The localized Delaunay triangulation and ad-hoc routing in heterogeneous environments 

      Watson, Mark Duncan (2005-12-13)
      Ad-Hoc Wireless routing has become an important area of research in the last few years due to the massive increase in wireless devices. Computational Geometry is relevant in attempts to build stable, low power routing ...
    • Mixed streaming of video over wireless networks 

      Daka, Justice (2007-07-13)
      In recent years, transmission of video over the Internet has become an important application. As wireless networks are becoming increasingly popular, it is expected that video will be an important application over wireless ...
    • A neural network face detector design using bit-width reduced FPU in FPGA 

      Lee, Yongsoon (2007-02-02)
      This thesis implemented a field programmable gate array (FPGA)-based face detector using a neural network (NN), as well as a bit-width reduced floating-point unit (FPU). An NN was used to easily separate face data and ...
    • Peer-to-peer stream merging for stored multimedia 

      Zhu, Qing (2007-05-02)
      In recent years, with the fast development of resource capability of both the Internet and personal computers, multimedia applications like video-on-demand (VOD) streaming have gained dramatic growth and been shown to be ...
    • Performance evaluation and benchmarking of the JXTA peer-to-peer platform 

      Halepovic, Emir (2004-08-05)
      Peer-to-peer (P2P) systems are a relatively new addition to the large area of distributed computer systems. The emphasis on sharing resources, self-organization and use of discovery mechanisms sets the P2P systems apart ...
    • Popularity Characterization and Modelling for User-generated Videos 

      Islam, Muhammad Aminul (2013-01-29)
      User-generated content systems such as YouTube have become highly popular. It is difficult to under- stand and predict content popularity in such systems. Characterizing and modelling content popularity can provide deeper ...
    • Proxy Support for HTTP Adaptive Streaming 

      Bullock, Michael (2014-01-20)
      Not long ago streaming video over the Internet included only short clips of low quality video. Now the possibilities seem endless as professional productions are made available in high definition. This explosion of growth ...
    • Reification of network resource control in multi-agent systems 

      Liu, Chen (2006-08-25)
      In multi-agent systems [1], coordinated resource sharing is indispensable for a set of autonomous agents, which are running in the same execution space, to accomplish their computational objectives. This research presents ...
    • Routing in wormhole networks 

      Ramany, Swaminathan (1996-01-01)
      As software overheads decrease and processor speeds increase relative to network speeds, the performance of multiprocessor interconnection networks will become increasingly important. This motivates design of efficient ...
    • Scalable download protocols 

      Carlsson, Niklas (2006-12-15)
      Scalable on-demand content delivery systems, designed to effectively handle increasing request rates, typically use service aggregation or content replication techniques. Service aggregation relies on one-to-many communication ...
    • Scalable on-demand streaming of stored complex multimedia 

      Zhao, Yanping (2004-07-27)
      Previous research has developed a number of efficient protocols for streaming popular multimedia files on-demand to potentially large numbers of concurrent clients. These protocols can achieve server bandwidth usage that ...
    • Scalable reliable on-demand media streaming protocols 

      Mahanti, Anirban (2004-03)
      This thesis considers the problem of delivering streaming media, on-demand, to potentially large numbers of concurrent clients. The problem has motivated the development in prior work of scalable protocols based on multicast ...
    • Simulation and Performance Evaluation of Hadoop Capacity Scheduler 

      Chauhan, Jagmohan (2013-09-05)
      MapReduce is a parallel programming paradigm used for processing huge datasets on certain classes of distributable problems using a cluster. Budgetary constraints and the need for better usage of resources in a MapReduce ...
    • Storage management for large scale systems 

      Wang, Wenguang (2004-12-03)
      Because of the slow access time of disk storage, storage management is crucial to the performance of many large scale computer systems. This thesis studies performance issues in buffer cache management and disk layout ...