University of Oklahoma

Displaying 1-23 of 23 results

  • White Papers // Jul 2011

    Evaluation of the Route Optimization for NEMO in Satellite Networks

    NEtwork MObility (NEMO) has been proposed to efficiently manage the mobility of the group of hosts that are moving together as a mobile network. NEMO Basic Support Protocol (BSP) suffers from the problem of inefficient route. A number of route optimization schemes have been proposed in the literature to solve...

    Provided By University of Oklahoma

  • White Papers // Jun 2011

    Toward an Optimal Combined FSO/RF System Via an Adaptive Bit Rate Control

    In hybrid FSO/RF (Free Space Optics/Radio Frequency) systems, the FSO link is the primary link while the RF link is the secondary (backup) link. In current hybrid systems, once the FSO Signal to Noise Ratio (SNR) decreases above a preset threshold, the system switches from FSO to RF to maintain...

    Provided By University of Oklahoma

  • White Papers // Jan 2011

    Signalling Cost Analysis of SINEMO: Seamless End-to-End Network Mobility

    IETF has proposed Mobile IPv6-based NEtwork MObility (NEMO) Basic Support Protocol (BSP) to support network mobility. NEMO BSP inherits all the drawbacks of Mobile IPv6, such as inefficient routing path, single point of failure, high handover latency and packet loss, and high packet overhead. To address these drawbacks, the authors...

    Provided By University of Oklahoma

  • White Papers // Aug 2010

    DEMS: A Data Mining Based Technique to Handle Missing Data in Mobile Sensor Network Applications

    In Mobile Sensor Network (MSN) applications, sensors move to increase the area of coverage and/or to compensate for the failure of other sensors. In such applications, loss or corruption of sensor data, known as the missing sensor data phenomenon, occurs due to various reasons, such as power outage, network interference,...

    Provided By University of Oklahoma

  • White Papers // Jul 2010

    Multipath Hybrid Ad Hoc Networks for Avionics Applications in Disaster Area

    During natural or manmade disasters, communication infrastructures break down due to massive destruction and subsequent loss of services. Effective rescue operations require a rapidly deployable high bandwidth network to carry out necessary relief efforts involving helicopters up in the sky and first responders on the ground. However, transmitting video and...

    Provided By University of Oklahoma

  • White Papers // Jul 2010

    AODVH: Ad hoc On-demand Distance Vector Routing for Hybrid Nodes

    Ad hoc networks are characterized by nodes which are usually connected by low data rate Radio Frequency (RF) links when compared to optical links. RF links make it challenging for transmitting video and running high bandwidth applications over ad hoc networks. The objective of this paper is to develop a...

    Provided By University of Oklahoma

  • White Papers // Jun 2010

    Survivability and Scalability of Space Networks

    Network survivability, which reflects the ability of a network to continue to function during and after natural or man-made disturbances, is a crucial aspect for any kind communication. It goes beyond security and fault tolerance to focus on delivery of essential services and rapid recovery of full services when situation...

    Provided By University of Oklahoma

  • White Papers // May 2010

    Performance of Prefix Delegation-Based Route Optimization Schemes for NEMO

    A number of prefix delegation-based schemes have been proposed in the literature to solve the route optimization problem in NEMO, where a group of hosts move together as a mobile network. The route optimization solutions generate different amounts of overheads that depend on the characteristics of the mobile network and...

    Provided By University of Oklahoma

  • White Papers // May 2010

    Functional Programmers: Get Them When They Are Young

    With a renewed emphasis on technology education, schools and government agencies are using kid attractive activities such as robotics competitions to draw middle and high school students to STEM oriented majors and careers in general and computer science and programming in particular. These activities tend to use simplified imperative programming...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Evaluation of Prefix Delegation-Based Route Optimization Schemes for NEMO

    Among the schemes, proposed in the literature to solve the route optimization problem in NEtwork MObility (NEMO), the prefix delegation-based schemes perform better than other schemes. Depending on the way the prefix are delegated, the prefix delegation-based schemes result in difference in performance under different speed at various distance from...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Software Accuracy-Based Sensor Network Design and Upgrade in Process Plants

    This paper present a new method for linear and nonlinear sensor network design with applications to variable estimation based on the use of accuracy and residual accuracy. Accuracy has been shown recently to be a better substitute for existing data-reconciliation network properties, such as precision, residual precision, gross error delectability...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Cumulative Impact of Inhomogeneous Channels on Risk

    This paper considers flow of containerized traffic in a cascade of channels with diverse risk characteristics. Each channel is characterized by a probability distribution function relating the probability of loss being less than a given value to the magnitude of the loss. The cumulative impact of cascading channels is then...

    Provided By University of Oklahoma

  • White Papers // Feb 2010

    Performance of Prefix Delegation-Based Route Optimization Schemes: Intra Mobile Network Case

    Among the route optimization schemes in NEtwork MObility (NEMO), the prefix delegation-based schemes perform better than other schemes. Since the prefix delegation-based schemes are designed for communication between a mobile network and a wired network, they lack evaluation for the case of intra mobile network communication involving MIPv6 incapable hosts...

    Provided By University of Oklahoma

  • White Papers // Jan 2010

    A Low Power Preamble Detection Methodology for Packet Based Modems

    In order to achieve frame synchronization in packetbased communication systems, a known sequence (Preamble) is sent at the beginning of each packet. This paper presents a low power scheme for preamble detection using dynamic precision configuration. The proposed scheme is based on the observation that signal processing algorithms at the...

    Provided By University of Oklahoma

  • White Papers // Dec 2009

    Parallel Computing Approaches to Sensor Network Design Using the Value Paradigm

    One previous paradigm was based on sensor positioning selection to allow key variable observability. Later, the problem was posed as a minimum cost problem subject to sensor network performance precision and gross error robustness first and accuracy as a replacement later. This paper presented two methods to solve the problem...

    Provided By University of Oklahoma

  • White Papers // Aug 2009

    Stochastic Properties and Application of City Section Mobility Model

    Node mobility has a direct impact on the performance evaluation of various network mobility protocols. Unfortunately, most of the analysis on mobility protocols used random waypoint mobility model which does not represent real-world movement patterns of mobile nodes. In this paper, the authors have analyzed City Section mobility model, a...

    Provided By University of Oklahoma

  • White Papers // Jun 2009

    Sovereign Wealth Fund Investment Patterns And Performance

    This paper describes the newly created Monitor-FEEM Sovereign Wealth Fund Transaction Database and discusses the investment patterns and performance of 1,216 individual investments, worth over $357 billion, made by 35 Sovereign Wealth Funds (SWFs) between January 1986 and September 2008. Approximately half of the investments they document occur after June...

    Provided By University of Oklahoma

  • White Papers // May 2009

    Refinery Operations Planning

    This paper summarizes the use of a linear programming model used to optimize refinery crude oil purchasing while meeting a specific uncertain demand. The model was optimized by maximizing the gross refinery margin (GRM). The model includes catalytic reforming units, naphtha pre-treating units, a kerosene treating unit, a hydrodesulfurization unit,...

    Provided By University of Oklahoma

  • White Papers // Apr 2009

    Data Mining Storm Attributes From Spatial Grids

    A technique to identify storms and capture scalar features within the geographic and temporal extent of the identified storms is described. The identification technique relies on clustering grid points in an observation field to find self-similar and spatially coherent clusters that meet the traditional understanding of what storms are. From...

    Provided By University of Oklahoma

  • White Papers // Apr 2009

    Routing in Degree-constrained FSO Mesh Networks

    This paper addresses the routing problem in packet switching free-space optical (FSO) mesh networks. FSO mesh networks are emerging as broadband communication networks because of their high bandwidth (up to Gbps), low cost, and easy installation. Physical layer topology design of degree-constrained FSO mesh networks has been studied in a...

    Provided By University of Oklahoma

  • White Papers // Mar 2009

    Optimal Monetary Policy Rules For Averting Productivity Induced Jobless Recoveries

    Although high productivity growth is a primary economic goal across nations, it can lead to short run adjustment problems when it temporarily achieves high levels. This may induce a jobless recovery when labor productivity is high while an economy is experiencing sluggish growth or a recession. This paper creates a...

    Provided By University of Oklahoma

  • White Papers // Oct 2008

    Analyzing Credit Spreads Using A Two Factor Model With Multiple Default Thresholds And Varying Covenant Protection

    The credit crisis beginning in 2007 has clearly made analysis of credit spreads a very important topic. The authors analyze the shape of credit spread term structures paying special attention to the humps that have been observed by a number of researchers. The shape of credit spreads depends upon the...

    Provided By University of Oklahoma

  • White Papers // Sep 2008

    Barriers To Effective Leader Decision-Making

    The goal of most organizations is to select and retain talented employees who can build and sustain corporate success. Highly talented employees often have to compete with noise, interference, resistance, cross talk, and a number of other disturbing issues in order to get through a workday. When the leader fails...

    Provided By University of Oklahoma

  • White Papers // Apr 2009

    Data Mining Storm Attributes From Spatial Grids

    A technique to identify storms and capture scalar features within the geographic and temporal extent of the identified storms is described. The identification technique relies on clustering grid points in an observation field to find self-similar and spatially coherent clusters that meet the traditional understanding of what storms are. From...

    Provided By University of Oklahoma

  • White Papers // Apr 2009

    Routing in Degree-constrained FSO Mesh Networks

    This paper addresses the routing problem in packet switching free-space optical (FSO) mesh networks. FSO mesh networks are emerging as broadband communication networks because of their high bandwidth (up to Gbps), low cost, and easy installation. Physical layer topology design of degree-constrained FSO mesh networks has been studied in a...

    Provided By University of Oklahoma

  • White Papers // Jan 2010

    A Low Power Preamble Detection Methodology for Packet Based Modems

    In order to achieve frame synchronization in packetbased communication systems, a known sequence (Preamble) is sent at the beginning of each packet. This paper presents a low power scheme for preamble detection using dynamic precision configuration. The proposed scheme is based on the observation that signal processing algorithms at the...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Software Accuracy-Based Sensor Network Design and Upgrade in Process Plants

    This paper present a new method for linear and nonlinear sensor network design with applications to variable estimation based on the use of accuracy and residual accuracy. Accuracy has been shown recently to be a better substitute for existing data-reconciliation network properties, such as precision, residual precision, gross error delectability...

    Provided By University of Oklahoma

  • White Papers // Dec 2009

    Parallel Computing Approaches to Sensor Network Design Using the Value Paradigm

    One previous paradigm was based on sensor positioning selection to allow key variable observability. Later, the problem was posed as a minimum cost problem subject to sensor network performance precision and gross error robustness first and accuracy as a replacement later. This paper presented two methods to solve the problem...

    Provided By University of Oklahoma

  • White Papers // May 2009

    Refinery Operations Planning

    This paper summarizes the use of a linear programming model used to optimize refinery crude oil purchasing while meeting a specific uncertain demand. The model was optimized by maximizing the gross refinery margin (GRM). The model includes catalytic reforming units, naphtha pre-treating units, a kerosene treating unit, a hydrodesulfurization unit,...

    Provided By University of Oklahoma

  • White Papers // Sep 2008

    Barriers To Effective Leader Decision-Making

    The goal of most organizations is to select and retain talented employees who can build and sustain corporate success. Highly talented employees often have to compete with noise, interference, resistance, cross talk, and a number of other disturbing issues in order to get through a workday. When the leader fails...

    Provided By University of Oklahoma

  • White Papers // Jun 2010

    Survivability and Scalability of Space Networks

    Network survivability, which reflects the ability of a network to continue to function during and after natural or man-made disturbances, is a crucial aspect for any kind communication. It goes beyond security and fault tolerance to focus on delivery of essential services and rapid recovery of full services when situation...

    Provided By University of Oklahoma

  • White Papers // May 2010

    Functional Programmers: Get Them When They Are Young

    With a renewed emphasis on technology education, schools and government agencies are using kid attractive activities such as robotics competitions to draw middle and high school students to STEM oriented majors and careers in general and computer science and programming in particular. These activities tend to use simplified imperative programming...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Cumulative Impact of Inhomogeneous Channels on Risk

    This paper considers flow of containerized traffic in a cascade of channels with diverse risk characteristics. Each channel is characterized by a probability distribution function relating the probability of loss being less than a given value to the magnitude of the loss. The cumulative impact of cascading channels is then...

    Provided By University of Oklahoma

  • White Papers // Jun 2009

    Sovereign Wealth Fund Investment Patterns And Performance

    This paper describes the newly created Monitor-FEEM Sovereign Wealth Fund Transaction Database and discusses the investment patterns and performance of 1,216 individual investments, worth over $357 billion, made by 35 Sovereign Wealth Funds (SWFs) between January 1986 and September 2008. Approximately half of the investments they document occur after June...

    Provided By University of Oklahoma

  • White Papers // Mar 2009

    Optimal Monetary Policy Rules For Averting Productivity Induced Jobless Recoveries

    Although high productivity growth is a primary economic goal across nations, it can lead to short run adjustment problems when it temporarily achieves high levels. This may induce a jobless recovery when labor productivity is high while an economy is experiencing sluggish growth or a recession. This paper creates a...

    Provided By University of Oklahoma

  • White Papers // Aug 2009

    Stochastic Properties and Application of City Section Mobility Model

    Node mobility has a direct impact on the performance evaluation of various network mobility protocols. Unfortunately, most of the analysis on mobility protocols used random waypoint mobility model which does not represent real-world movement patterns of mobile nodes. In this paper, the authors have analyzed City Section mobility model, a...

    Provided By University of Oklahoma

  • White Papers // Mar 2010

    Evaluation of Prefix Delegation-Based Route Optimization Schemes for NEMO

    Among the schemes, proposed in the literature to solve the route optimization problem in NEtwork MObility (NEMO), the prefix delegation-based schemes perform better than other schemes. Depending on the way the prefix are delegated, the prefix delegation-based schemes result in difference in performance under different speed at various distance from...

    Provided By University of Oklahoma

  • White Papers // Jul 2010

    Multipath Hybrid Ad Hoc Networks for Avionics Applications in Disaster Area

    During natural or manmade disasters, communication infrastructures break down due to massive destruction and subsequent loss of services. Effective rescue operations require a rapidly deployable high bandwidth network to carry out necessary relief efforts involving helicopters up in the sky and first responders on the ground. However, transmitting video and...

    Provided By University of Oklahoma

  • White Papers // Feb 2010

    Performance of Prefix Delegation-Based Route Optimization Schemes: Intra Mobile Network Case

    Among the route optimization schemes in NEtwork MObility (NEMO), the prefix delegation-based schemes perform better than other schemes. Since the prefix delegation-based schemes are designed for communication between a mobile network and a wired network, they lack evaluation for the case of intra mobile network communication involving MIPv6 incapable hosts...

    Provided By University of Oklahoma

  • White Papers // May 2010

    Performance of Prefix Delegation-Based Route Optimization Schemes for NEMO

    A number of prefix delegation-based schemes have been proposed in the literature to solve the route optimization problem in NEMO, where a group of hosts move together as a mobile network. The route optimization solutions generate different amounts of overheads that depend on the characteristics of the mobile network and...

    Provided By University of Oklahoma

  • White Papers // Jul 2010

    AODVH: Ad hoc On-demand Distance Vector Routing for Hybrid Nodes

    Ad hoc networks are characterized by nodes which are usually connected by low data rate Radio Frequency (RF) links when compared to optical links. RF links make it challenging for transmitting video and running high bandwidth applications over ad hoc networks. The objective of this paper is to develop a...

    Provided By University of Oklahoma

  • White Papers // Oct 2008

    Analyzing Credit Spreads Using A Two Factor Model With Multiple Default Thresholds And Varying Covenant Protection

    The credit crisis beginning in 2007 has clearly made analysis of credit spreads a very important topic. The authors analyze the shape of credit spread term structures paying special attention to the humps that have been observed by a number of researchers. The shape of credit spreads depends upon the...

    Provided By University of Oklahoma

  • White Papers // Aug 2010

    DEMS: A Data Mining Based Technique to Handle Missing Data in Mobile Sensor Network Applications

    In Mobile Sensor Network (MSN) applications, sensors move to increase the area of coverage and/or to compensate for the failure of other sensors. In such applications, loss or corruption of sensor data, known as the missing sensor data phenomenon, occurs due to various reasons, such as power outage, network interference,...

    Provided By University of Oklahoma

  • White Papers // Jan 2011

    Signalling Cost Analysis of SINEMO: Seamless End-to-End Network Mobility

    IETF has proposed Mobile IPv6-based NEtwork MObility (NEMO) Basic Support Protocol (BSP) to support network mobility. NEMO BSP inherits all the drawbacks of Mobile IPv6, such as inefficient routing path, single point of failure, high handover latency and packet loss, and high packet overhead. To address these drawbacks, the authors...

    Provided By University of Oklahoma

  • White Papers // Jun 2011

    Toward an Optimal Combined FSO/RF System Via an Adaptive Bit Rate Control

    In hybrid FSO/RF (Free Space Optics/Radio Frequency) systems, the FSO link is the primary link while the RF link is the secondary (backup) link. In current hybrid systems, once the FSO Signal to Noise Ratio (SNR) decreases above a preset threshold, the system switches from FSO to RF to maintain...

    Provided By University of Oklahoma

  • White Papers // Jul 2011

    Evaluation of the Route Optimization for NEMO in Satellite Networks

    NEtwork MObility (NEMO) has been proposed to efficiently manage the mobility of the group of hosts that are moving together as a mobile network. NEMO Basic Support Protocol (BSP) suffers from the problem of inefficient route. A number of route optimization schemes have been proposed in the literature to solve...

    Provided By University of Oklahoma