Recent Submissions

  • A framework for multidimensional indexes on distributed and highly-available data stores 

    Cugnasco, Cesare (Universitat Politècnica de Catalunya, 2019-03-22)
    Doctoral thesis
    Open Access
    Spatial Big Data is considered an essential trend in future scientific and business applications. Indeed, research instruments, medical devices, and social networks generate hundreds of peta bytes of spatial data per year. ...
  • A time-predictable parallel programing model for real-time systems 

    Serrano, Maria A. (Universitat Politècnica de Catalunya, 2019-03-13)
    Doctoral thesis
    Open Access
    The recent technological advancements and market trends are causing an interesting phenomenon towards the convergence of the high-performance and the embedded computing domains. Critical real-time embedded systems are ...
  • Contributions to network planning and operation of Flex-Grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío (Universitat Politècnica de Catalunya, 2019-03-14)
    Doctoral thesis
    Open Access
    The ever demanding bandwidth requirements for supporting emerging telecom services such as ultra-high-definition video streaming, cloud computing, connected car, virtual/augmented reality, etc., bring to the fore the ...
  • Design, monitoring and performance evaluation of high capacity optical networks 

    Shariati, Mohammad Behnam (Universitat Politècnica de Catalunya, 2019-02-22)
    Doctoral thesis
    Open Access
    Internet traffic is expected to keep increasing exponentially due to the emergence of a vast number of innovative online services and applications. Optical networks, which are the cornerstone of the underlying Internet ...
  • Advanced analytics through FPGA based query processing and deep reinforcement learning 

    Malazgirt, Gorker Alp (Universitat Politècnica de Catalunya, 2019-02-12)
    Doctoral thesis
    Open Access
    Today, vast streams of structured and unstructured data have been incorporated in databases, and analytical processes are applied to discover patterns, correlations, trends and other useful relationships that help to take ...
  • Computer-language based data prefetching techniques 

    Touma, Rizkallah (Universitat Politècnica de Catalunya, 2019-01-25)
    Doctoral thesis
    Open Access
    Data prefetching has long been used as a technique to improve access times to persistent data. It is based on retrieving data records from persistent storage to main memory before the records are needed. Data prefetching ...
  • Compiler and runtime based parallelization & optimization for GPUs 

    Ozen, Guray (Universitat Politècnica de Catalunya, 2018-12-13)
    Doctoral thesis
    Open Access
    Graphics Processing Units (GPU) have been widely adopted to accelerate the execution of HPC workloads due to their vast computational throughput, ability to execute a large number of threads inside SIMD groups in parallel ...
  • Aggressive undervolting of FPGAs : power & reliability trade-offs 

    Salami, Behzad (Universitat Politècnica de Catalunya, 2018-11-19)
    Doctoral thesis
    Open Access
    In this work, we evaluate aggressive undervolting, i.e., voltage underscaling below the nominal level to reduce the energy consumption of Field Programmable Gate Arrays (FPGAs). Usually, voltage guardbands are added by ...
  • Hardware runtime management for task-based programming models 

    Tan, Xubin (Universitat Politècnica de Catalunya, 2018-11-26)
    Doctoral thesis
    Open Access
    Task-based programming models allow programmers to express applications as a collection of tasks with dependences. They are simple to use and greatly improve programmability by using software runtimes to exploit task ...
  • Orchestration of distributed ingestion and processing of IoT data for fog platforms 

    Pérez Rico, Juan Luis (Universitat Politècnica de Catalunya, 2018-11-26)
    Doctoral thesis
    Open Access
    In recent years there has been an extraordinary growth of the Internet of Things (IoT) and its protocols. The increasing diffusion of electronic devices with identification, computing and communication capabilities is ...
  • Exploiting asymmetric multi-core systems with flexible system software 

    Chronaki, Kallia (Universitat Politècnica de Catalunya, 2018-11-21)
    Doctoral thesis
    Open Access
    Asymmetric multi-cores (AMCs) are a successful architectural solution for both mobile devices and supercomputers. These architectures combine different types of processing cores designed at different performance and power ...
  • Bringing cognition to multilayer transport networks 

    Pérez Vela, Alba (Universitat Politècnica de Catalunya, 2018-11-09)
    Doctoral thesis
    Open Access
    Operator’s transport networks are becoming increasingly more complex due to the large number of network layers needed to support the ever increasing number of new services (e.g., video-on-demand, social media, on-line ...

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