Universidade Federal do Ceara

Displaying 1-5 of 5 results

  • White Papers // Nov 2010

    Performance Evaluation of Web Services Orchestrated With WS-BPEl4people

    WS-BPEL Extension for People (BPEL4People) introduces human activity to Web Services Business Process Execution Language (WS-BPEL/BPEL). Some works have been done on the performance verification of WS-BPEL, but there aren't works on the performance verification of WS-BPEL4People. In this paper, the authors propose a model method for the transformation of...

    Provided By Universidade Federal do Ceara

  • White Papers // May 2010

    Distributed Parafac Based DS-CDMA Blind Receiver for Wireless Sensor Networks

    In this paper, the authors consider a collaborative scheme in wireless sensor networks where the multiple access protocol is a DS-CDMA one. When the receiver is equipped with an antenna array, it has been shown that efficient blind receivers can be derived using the PARAFAC tensor model. In general, the...

    Provided By Universidade Federal do Ceara

  • White Papers // Jan 2010

    Solving the Frequency Assignment Problem by Site Availability and Constraint Programming

    The efficient use of bandwidth for radio communications becomes more and more crucial when developing new information technologies and their applications. The core issues are addressed by the so-called Frequency Assignment Problems (FAP). The work investigates static FAP, where an attempt is first made to configure a kernel of links....

    Provided By Universidade Federal do Ceara

  • White Papers // Oct 2009

    Performance Analysis of a Multiband OFDM UWB System in the Presence of Narrowband Interference

    In this paper, the authors present a performance analysis of an Ultra Wide-Band (UWB) communication system based on Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) in the presence of narrowband interference. Although OFDM-based systems are known to be capable of withstanding some level of narrowband interference, mitigation techniques may have to...

    Provided By Universidade Federal do Ceara

  • White Papers // May 2009

    A Type System for Parallel Components

    Multi-core processors have already made parallel computing a mainstream technology, but High Performance Computing (HPC) applications that run on clusters and grids have already attracted the investments of the software industry. The key for reaching peak performance is the knowledge of how to apply HPC techniques for parallel programming by...

    Provided By Universidade Federal do Ceara

  • White Papers // Oct 2009

    Performance Analysis of a Multiband OFDM UWB System in the Presence of Narrowband Interference

    In this paper, the authors present a performance analysis of an Ultra Wide-Band (UWB) communication system based on Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) in the presence of narrowband interference. Although OFDM-based systems are known to be capable of withstanding some level of narrowband interference, mitigation techniques may have to...

    Provided By Universidade Federal do Ceara

  • White Papers // Jan 2010

    Solving the Frequency Assignment Problem by Site Availability and Constraint Programming

    The efficient use of bandwidth for radio communications becomes more and more crucial when developing new information technologies and their applications. The core issues are addressed by the so-called Frequency Assignment Problems (FAP). The work investigates static FAP, where an attempt is first made to configure a kernel of links....

    Provided By Universidade Federal do Ceara

  • White Papers // May 2009

    A Type System for Parallel Components

    Multi-core processors have already made parallel computing a mainstream technology, but High Performance Computing (HPC) applications that run on clusters and grids have already attracted the investments of the software industry. The key for reaching peak performance is the knowledge of how to apply HPC techniques for parallel programming by...

    Provided By Universidade Federal do Ceara

  • White Papers // Nov 2010

    Performance Evaluation of Web Services Orchestrated With WS-BPEl4people

    WS-BPEL Extension for People (BPEL4People) introduces human activity to Web Services Business Process Execution Language (WS-BPEL/BPEL). Some works have been done on the performance verification of WS-BPEL, but there aren't works on the performance verification of WS-BPEL4People. In this paper, the authors propose a model method for the transformation of...

    Provided By Universidade Federal do Ceara

  • White Papers // May 2010

    Distributed Parafac Based DS-CDMA Blind Receiver for Wireless Sensor Networks

    In this paper, the authors consider a collaborative scheme in wireless sensor networks where the multiple access protocol is a DS-CDMA one. When the receiver is equipped with an antenna array, it has been shown that efficient blind receivers can be derived using the PARAFAC tensor model. In general, the...

    Provided By Universidade Federal do Ceara