ETRI

Displaying 1-14 of 14 results

  • White Papers // Feb 2013

    Adaptive Data Transmission Control for Multilane-Based Ethernet

    The authors propose a Reconciliation Sub-layer (RS)-based lane and traffic control protocol for energy-efficient 40-G/100-G Ethernet. The RS performs active/inactive lane control and data rate adaptation depending on active lane information received from the upper layer. This protocol does not result in a processing delay in the media access control...

    Provided By ETRI

  • White Papers // Feb 2013

    Cost-Efficient Virtual Optical Network Embedding for Manageable Inter-Data-Center Connectivity

    Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this paper, the authors focus on the cost-efficient embedding of on-demand virtual optical network requests for interconnecting geographically distributed data centers. They present a mixed integer linear programming formulation that introduces flexibility in the virtual-physical...

    Provided By ETRI

  • White Papers // Feb 2013

    A Link Between Integrals and Higher-Order Integrals of SPN Ciphers

    Integral cryptanalysis, which is based on the existence of (higher-order) integral distinguishers, is a powerful cryptographic method that can be used to evaluate the security of modern block ciphers. In this paper, the authors focus on Substitution-Permutation Network (SPN) ciphers and propose a criterion to characterize how an r-round integral...

    Provided By ETRI

  • White Papers // Feb 2013

    Analysis of Resource Assignment for Directional Multihop Communications in Mm-Wave WPANs

    This paper presents an analysis of resource assignment for multi-hop communications in millimeter-wave (mm-wave) wireless personal area networks. The purpose of this paper is to figure out the effect of using directional antennas and relaying DEVices (DEVs) in communications. The analysis is performed based on a grouping algorithm, categorization of...

    Provided By ETRI

  • White Papers // Feb 2013

    Reduction of False Alarm Signals for PIR Sensor in Realistic Outdoor Surveillance

    A passive infrared or Pyroelectric InfraRed (PIR) sensor is mainly used to sense the existence of moving objects in an indoor environment. However, in an outdoor environment, there are often outbreaks of false alarms from environmental changes and other sources. Therefore, it is difficult to provide reliable detection outdoors. In...

    Provided By ETRI

  • White Papers // Feb 2013

    An SSD-Based Storage System for an Interactive Media Server Using Video Frame Grouping

    For real-time interactive multimedia operations, such as video uploading, video play, fast-forward, and fast-rewind, Solid State Disk (SSD)-based storage systems for video streaming servers are becoming more important. Random access rates in storage systems increase significantly with the number of users; it is thus difficult to simultaneously serve many users...

    Provided By ETRI

  • White Papers // Feb 2013

    Enhancement of Return Routability Mechanism for Optimized-NEMO Using Correspondent Firewall

    NEtwork MObility (NEMO) handles mobility of multiple nodes in an aggregate manner as a mobile network. The standard NEMO suffers from a number of limitations, such as inefficient routing and increased handoff latency. Most previous studies attempting to solve such problems have imposed an extra signaling load and/or modified the...

    Provided By ETRI

  • White Papers // Feb 2013

    An Improved Contention Access Mechanism for FPRP to Increase Throughput

    Five-Phase Reservation Protocol (FPRP) is a contention-based media access control protocol for wireless ad hoc networks. FPRP uses a five-phase reservation process to establish slot assignments based on time division multiple accesses. It allows a node to reserve only one slot in an information frame. Once a node has reserved...

    Provided By ETRI

  • White Papers // Feb 2013

    Small Internal Antenna Using Multiband, Wideband, and High-Isolation MIMO Techniques

    In this paper, a small internal antenna for a mobile handset is presented using multiband, wideband, and high-isolation multiple-input multiple-output techniques. The proposed antenna consists of three Planar Inverted-F Antennas (PIFAs) that operate in the Global System for Mobile communication (GSM900), the Digital Communication System (DCS), the Personal Communication System...

    Provided By ETRI

  • White Papers // Feb 2013

    Efficient Congestion Control Utilizing Message Eavesdropping in Asynchronous Range-Based Localization

    Asynchronous ranging is one practical method to implement a locating system that provides accurate results. However, a locating system utilizing asynchronous ranging generates a large number of messages that cause transmission delays or failures and degrades the system performance. This paper proposes a novel approach for efficient congestion control in...

    Provided By ETRI

  • White Papers // Feb 2013

    Design and Implementation of a Network-Adaptive Mechanism for HTTP Video Streaming

    This paper proposes a network-adaptive mechanism for HTTP-based video streaming over wireless/mobile networks. To provide adaptive video streaming over wireless/mobile networks, the proposed mechanism consists of a throughput estimation scheme in the time-variant wireless network environment and a video rate selection algorithm used to increase the streaming quality. The adaptive...

    Provided By ETRI

  • White Papers // Feb 2013

    Development of Efficient Dynamic Bandwidth Allocation Algorithm for XGPON

    This paper proposes an Efficient Bandwidth Utilization (EBU) algorithm that utilizes the unused bandwidth in Dynamic Bandwidth Allocation (DBA) of a 10-Gigabit-capable Passive Optical Network (XGPON). In EBU, an available byte counter of a queue can be negative and the unused remainder of an available byte counter can be utilized...

    Provided By ETRI

  • White Papers // Feb 2013

    New Framework and Mechanisms of Context-Aware Service Composition in the Future Internet

    The ongoing proliferation of new services, applications, and contents is leading the Internet to an architectural crisis owing to its inability to provide efficient solutions to new requirements. Clean-slate architectures for the future Internet offer a new approach to tackle current and future challenges. This proposal introduces a novel clean-slate...

    Provided By ETRI

  • White Papers // Feb 2013

    A Cost-Effective 40-Gb/s ROSA Module Employing Compact TO-CAN Package

    In this paper, the authors present an implemented serial 40-Gb/s Receiver Optical Sub-Assembly (ROSA) module by employing a proposed TO-CAN package and Flexible Printed Circuit Board (FPCB). The TO-CAN package employs an L-shaped metal support to provide a straight line signal path between the TO-CAN package and the FPCB. In...

    Provided By ETRI

  • White Papers // Feb 2013

    Adaptive Data Transmission Control for Multilane-Based Ethernet

    The authors propose a Reconciliation Sub-layer (RS)-based lane and traffic control protocol for energy-efficient 40-G/100-G Ethernet. The RS performs active/inactive lane control and data rate adaptation depending on active lane information received from the upper layer. This protocol does not result in a processing delay in the media access control...

    Provided By ETRI

  • White Papers // Feb 2013

    Cost-Efficient Virtual Optical Network Embedding for Manageable Inter-Data-Center Connectivity

    Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this paper, the authors focus on the cost-efficient embedding of on-demand virtual optical network requests for interconnecting geographically distributed data centers. They present a mixed integer linear programming formulation that introduces flexibility in the virtual-physical...

    Provided By ETRI

  • White Papers // Feb 2013

    A Link Between Integrals and Higher-Order Integrals of SPN Ciphers

    Integral cryptanalysis, which is based on the existence of (higher-order) integral distinguishers, is a powerful cryptographic method that can be used to evaluate the security of modern block ciphers. In this paper, the authors focus on Substitution-Permutation Network (SPN) ciphers and propose a criterion to characterize how an r-round integral...

    Provided By ETRI

  • White Papers // Feb 2013

    Analysis of Resource Assignment for Directional Multihop Communications in Mm-Wave WPANs

    This paper presents an analysis of resource assignment for multi-hop communications in millimeter-wave (mm-wave) wireless personal area networks. The purpose of this paper is to figure out the effect of using directional antennas and relaying DEVices (DEVs) in communications. The analysis is performed based on a grouping algorithm, categorization of...

    Provided By ETRI

  • White Papers // Feb 2013

    Reduction of False Alarm Signals for PIR Sensor in Realistic Outdoor Surveillance

    A passive infrared or Pyroelectric InfraRed (PIR) sensor is mainly used to sense the existence of moving objects in an indoor environment. However, in an outdoor environment, there are often outbreaks of false alarms from environmental changes and other sources. Therefore, it is difficult to provide reliable detection outdoors. In...

    Provided By ETRI

  • White Papers // Feb 2013

    An SSD-Based Storage System for an Interactive Media Server Using Video Frame Grouping

    For real-time interactive multimedia operations, such as video uploading, video play, fast-forward, and fast-rewind, Solid State Disk (SSD)-based storage systems for video streaming servers are becoming more important. Random access rates in storage systems increase significantly with the number of users; it is thus difficult to simultaneously serve many users...

    Provided By ETRI

  • White Papers // Feb 2013

    Enhancement of Return Routability Mechanism for Optimized-NEMO Using Correspondent Firewall

    NEtwork MObility (NEMO) handles mobility of multiple nodes in an aggregate manner as a mobile network. The standard NEMO suffers from a number of limitations, such as inefficient routing and increased handoff latency. Most previous studies attempting to solve such problems have imposed an extra signaling load and/or modified the...

    Provided By ETRI

  • White Papers // Feb 2013

    An Improved Contention Access Mechanism for FPRP to Increase Throughput

    Five-Phase Reservation Protocol (FPRP) is a contention-based media access control protocol for wireless ad hoc networks. FPRP uses a five-phase reservation process to establish slot assignments based on time division multiple accesses. It allows a node to reserve only one slot in an information frame. Once a node has reserved...

    Provided By ETRI

  • White Papers // Feb 2013

    Small Internal Antenna Using Multiband, Wideband, and High-Isolation MIMO Techniques

    In this paper, a small internal antenna for a mobile handset is presented using multiband, wideband, and high-isolation multiple-input multiple-output techniques. The proposed antenna consists of three Planar Inverted-F Antennas (PIFAs) that operate in the Global System for Mobile communication (GSM900), the Digital Communication System (DCS), the Personal Communication System...

    Provided By ETRI

  • White Papers // Feb 2013

    Efficient Congestion Control Utilizing Message Eavesdropping in Asynchronous Range-Based Localization

    Asynchronous ranging is one practical method to implement a locating system that provides accurate results. However, a locating system utilizing asynchronous ranging generates a large number of messages that cause transmission delays or failures and degrades the system performance. This paper proposes a novel approach for efficient congestion control in...

    Provided By ETRI

  • White Papers // Feb 2013

    Design and Implementation of a Network-Adaptive Mechanism for HTTP Video Streaming

    This paper proposes a network-adaptive mechanism for HTTP-based video streaming over wireless/mobile networks. To provide adaptive video streaming over wireless/mobile networks, the proposed mechanism consists of a throughput estimation scheme in the time-variant wireless network environment and a video rate selection algorithm used to increase the streaming quality. The adaptive...

    Provided By ETRI

  • White Papers // Feb 2013

    Development of Efficient Dynamic Bandwidth Allocation Algorithm for XGPON

    This paper proposes an Efficient Bandwidth Utilization (EBU) algorithm that utilizes the unused bandwidth in Dynamic Bandwidth Allocation (DBA) of a 10-Gigabit-capable Passive Optical Network (XGPON). In EBU, an available byte counter of a queue can be negative and the unused remainder of an available byte counter can be utilized...

    Provided By ETRI

  • White Papers // Feb 2013

    New Framework and Mechanisms of Context-Aware Service Composition in the Future Internet

    The ongoing proliferation of new services, applications, and contents is leading the Internet to an architectural crisis owing to its inability to provide efficient solutions to new requirements. Clean-slate architectures for the future Internet offer a new approach to tackle current and future challenges. This proposal introduces a novel clean-slate...

    Provided By ETRI

  • White Papers // Feb 2013

    A Cost-Effective 40-Gb/s ROSA Module Employing Compact TO-CAN Package

    In this paper, the authors present an implemented serial 40-Gb/s Receiver Optical Sub-Assembly (ROSA) module by employing a proposed TO-CAN package and Flexible Printed Circuit Board (FPCB). The TO-CAN package employs an L-shaped metal support to provide a straight line signal path between the TO-CAN package and the FPCB. In...

    Provided By ETRI