University of Campinas

Displaying 1-12 of 12 results

  • White Papers // Jan 2014

    Next Generation Identity Verification Based on Face-Gait Biometrics

    Biometric person identification is a common technological tool for identity verification. It is carries significant importance for national or international security. Biometric authentication of a person is highly challenging and complex problem. A significant research effort has gone into these areas and a number of research works were published, but...

    Provided By University of Campinas

  • White Papers // Feb 2012

    A Taxonomy of Internal Attacks in Wireless Sensor Network

    Developments in communication technologies especially in wireless have enabled the progress of low-cost and low-power Wireless Sensor Networks (WSNs). The features of such WSN are holding minimal energy, weak computational capabilities, wireless communication and an open-medium nature where sensors are deployed. WSN is underpinned by application driven such as military...

    Provided By University of Campinas

  • White Papers // Jan 2012

    Leveraging Multipath Routing and Traffic Grooming for an Efficient Load Balancing in Optical Networks

    Optical networks can benefit from multipath routing by routing traffic over diverse fiber links to fulfill bandwidth requirements, balance network load and improve resource utilization. This paper focuses on the effectiveness of multipath routing on aggregating residual bandwidth of the established light-paths using dynamic traffic grooming. An optimization model based...

    Provided By University of Campinas

  • White Papers // Jan 2012

    PCE-Based Inter-Domain Lightpath Provisioning

    Despite the research advances in intra-domain light-path provisioning in WDM networks, efficient and practical schemes for path computation and resource advertisement in multi-domain mesh networks still need to be developed. Most of the proposed solutions in the literature lacks the ability to convey optical network-specific Traffic Engineering information and are...

    Provided By University of Campinas

  • White Papers // Sep 2011

    Human Identity Verification by Using Physiological and Behavioural Biometric Traits

    Biometric authentication of a person is highly challenging and complex problem. A significant research effort has gone into this area and a number of research works were published, but still there is an immense shortage of accurate and robust methods and techniques. In this paper, the authors survey several important...

    Provided By University of Campinas

  • White Papers // Aug 2011

    Connectivity, Spectral Efficiency and Outage Probability in Femto-Cell Networks

    The performance of femto-cell networks by means of user connectivity, link spectral efficiency and outage probability is investigated in this letter. Considering a scenario where the femto-base-stations and users are Poisson distributed throughout the two-dimensional plane, the authors derive closed-form equations that establish the relations between those evaluation figures using...

    Provided By University of Campinas

  • White Papers // Sep 2010

    Cognitive Rate Adaptation in Wireless LANs

    Rate adaptation represents a relevant issue in optimization of wireless local area network performance. The paper proposes to employ a cognitive approach to perform rate adaptation, which is able to learn cause-effect relationships without any a priori knowledge. Results demonstrate the potential of the proposed scheme. The IEEE 802.11 is...

    Provided By University of Campinas

  • White Papers // Mar 2010

    Extending the 5S Framework of Digital Libraries to Support Complex Objects, Superimposed Information, and Content-Based Image Retrieval Services

    Advanced services in Digital Libraries (DLs) have been developed and widely used to address the required capabilities of an assortment of systems as DLs expand into diverse application domains. These systems may require support for images (e.g., Content-Based Image Retrieval), Complex (information) Objects, and use of content at fine grain...

    Provided By University of Campinas

  • White Papers // Jan 2010

    In-Packet Bloom Filters: Design and Networking Applications

    The Bloom Filter (BF) is a well-known space-efficient data structure that answers set membership queries with some probability of false positives. In an attempt to solve many of the limitations of current inter-networking architectures, some recent proposals rely on including small Bus in packet headers for routing, security, accountability or...

    Provided By University of Campinas

  • White Papers // Nov 2009

    Leveraging Aspect-Connectors to Improve Stability of Product-Line Variabilities

    One of the design goals of Product Line Architectures (PLAs) is to remain stable while accommodating changes of stakeholder's requirements. However, the stability of a PLA is largely dependent on how modularized are the decisions crosscutting multiple architectural variation points. Their scattered implementation often leads to a number of side...

    Provided By University of Campinas

  • White Papers // Oct 2009

    A Java Package for Synchronous Simulation Processing

    It is common practice in the process of designing systems, protocols and circuits to implement a simulation phase aiming at to foresee performance and to identify possible flaws. In principle, the simulation of processes, which feature the occurrence of concurrent events, would require some sort of parallel processing in order...

    Provided By University of Campinas

  • White Papers // Jan 2007

    Multimodal Fuzzy Fusion for Biometric Identity Management

    Biometric identity management based only on the single biometric modality is not accurate or robust enough to be used in uncontrolled environments. This paper describes a fusion of face and voice biometric traits, based on fuzzy logic approach for speaker identity verification. In this approach, a scheme based on membership...

    Provided By University of Campinas

  • White Papers // Feb 2012

    A Taxonomy of Internal Attacks in Wireless Sensor Network

    Developments in communication technologies especially in wireless have enabled the progress of low-cost and low-power Wireless Sensor Networks (WSNs). The features of such WSN are holding minimal energy, weak computational capabilities, wireless communication and an open-medium nature where sensors are deployed. WSN is underpinned by application driven such as military...

    Provided By University of Campinas

  • White Papers // Oct 2009

    A Java Package for Synchronous Simulation Processing

    It is common practice in the process of designing systems, protocols and circuits to implement a simulation phase aiming at to foresee performance and to identify possible flaws. In principle, the simulation of processes, which feature the occurrence of concurrent events, would require some sort of parallel processing in order...

    Provided By University of Campinas

  • White Papers // Mar 2010

    Extending the 5S Framework of Digital Libraries to Support Complex Objects, Superimposed Information, and Content-Based Image Retrieval Services

    Advanced services in Digital Libraries (DLs) have been developed and widely used to address the required capabilities of an assortment of systems as DLs expand into diverse application domains. These systems may require support for images (e.g., Content-Based Image Retrieval), Complex (information) Objects, and use of content at fine grain...

    Provided By University of Campinas

  • White Papers // Jan 2010

    In-Packet Bloom Filters: Design and Networking Applications

    The Bloom Filter (BF) is a well-known space-efficient data structure that answers set membership queries with some probability of false positives. In an attempt to solve many of the limitations of current inter-networking architectures, some recent proposals rely on including small Bus in packet headers for routing, security, accountability or...

    Provided By University of Campinas

  • White Papers // Aug 2011

    Connectivity, Spectral Efficiency and Outage Probability in Femto-Cell Networks

    The performance of femto-cell networks by means of user connectivity, link spectral efficiency and outage probability is investigated in this letter. Considering a scenario where the femto-base-stations and users are Poisson distributed throughout the two-dimensional plane, the authors derive closed-form equations that establish the relations between those evaluation figures using...

    Provided By University of Campinas

  • White Papers // Nov 2009

    Leveraging Aspect-Connectors to Improve Stability of Product-Line Variabilities

    One of the design goals of Product Line Architectures (PLAs) is to remain stable while accommodating changes of stakeholder's requirements. However, the stability of a PLA is largely dependent on how modularized are the decisions crosscutting multiple architectural variation points. Their scattered implementation often leads to a number of side...

    Provided By University of Campinas

  • White Papers // Jan 2012

    Leveraging Multipath Routing and Traffic Grooming for an Efficient Load Balancing in Optical Networks

    Optical networks can benefit from multipath routing by routing traffic over diverse fiber links to fulfill bandwidth requirements, balance network load and improve resource utilization. This paper focuses on the effectiveness of multipath routing on aggregating residual bandwidth of the established light-paths using dynamic traffic grooming. An optimization model based...

    Provided By University of Campinas

  • White Papers // Jan 2012

    PCE-Based Inter-Domain Lightpath Provisioning

    Despite the research advances in intra-domain light-path provisioning in WDM networks, efficient and practical schemes for path computation and resource advertisement in multi-domain mesh networks still need to be developed. Most of the proposed solutions in the literature lacks the ability to convey optical network-specific Traffic Engineering information and are...

    Provided By University of Campinas

  • White Papers // Sep 2010

    Cognitive Rate Adaptation in Wireless LANs

    Rate adaptation represents a relevant issue in optimization of wireless local area network performance. The paper proposes to employ a cognitive approach to perform rate adaptation, which is able to learn cause-effect relationships without any a priori knowledge. Results demonstrate the potential of the proposed scheme. The IEEE 802.11 is...

    Provided By University of Campinas

  • White Papers // Jan 2014

    Next Generation Identity Verification Based on Face-Gait Biometrics

    Biometric person identification is a common technological tool for identity verification. It is carries significant importance for national or international security. Biometric authentication of a person is highly challenging and complex problem. A significant research effort has gone into these areas and a number of research works were published, but...

    Provided By University of Campinas

  • White Papers // Sep 2011

    Human Identity Verification by Using Physiological and Behavioural Biometric Traits

    Biometric authentication of a person is highly challenging and complex problem. A significant research effort has gone into this area and a number of research works were published, but still there is an immense shortage of accurate and robust methods and techniques. In this paper, the authors survey several important...

    Provided By University of Campinas

  • White Papers // Jan 2007

    Multimodal Fuzzy Fusion for Biometric Identity Management

    Biometric identity management based only on the single biometric modality is not accurate or robust enough to be used in uncontrolled environments. This paper describes a fusion of face and voice biometric traits, based on fuzzy logic approach for speaker identity verification. In this approach, a scheme based on membership...

    Provided By University of Campinas