Washington Trust Bank

Displaying 1-32 of 32 results

  • White Papers // Apr 2014

    Practical Real-Time Scheduling for Parallel Tasks - From Theory to Platform

    In this paper, the authors review closely related work on both theoretical and system-based multiprocessor and parallel real-time scheduling. There has been a large body of work on real-time multiprocessor scheduling, both for global and partitioned schedulers, and for fixed and dynamic priority scheduling. Here, they review some of the...

    Provided By Washington Trust Bank

  • White Papers // Mar 2014

    CloudPowerCap: Integrating Power Budget and Resource Management Across a Virtualized Server Cluster

    In many datacenters, server racks are highly underutilized. Rack slots are left empty to keep the sum of the server nameplate maximum power below the power provisioned to the rack. And the servers that are placed in the rack cannot make full use of available rack power. The root cause...

    Provided By Washington Trust Bank

  • White Papers // Nov 2013

    Real-Time Multi-Core Virtual Machine Scheduling in Xen

    Recent years have witnessed two major trends in the development of complex real-time systems. First, to reduce cost and enhance flexibility, multiple systems are sharing common computing platforms via virtualization technology, instead of being deployed separately on physically isolated hosts. Second, multicore processors are increasingly being used in real-time systems....

    Provided By Washington Trust Bank

  • White Papers // Apr 2013

    Parallel Real-Time Scheduling of DAGs

    Recently, multi-core processors have become main-stream in processor design. To take full advantage of multi-core processing, computation-intensive real-time systems must exploit intra-task parallelism. In this paper, the authors address the open problem of real-time scheduling for a general model of deterministic parallel tasks, where each task is represented as a...

    Provided By Washington Trust Bank

  • White Papers // Mar 2013

    Experimental Evaluation of Content Distribution with NDN and HTTP

    Content distribution is a primary activity on the Internet. Name-centric network architectures support content distribution intrinsically. Named Data Networking (NDN), one recent such scheme, names packets rather than end-hosts, thereby enabling packets to be cached and redistributed by routers. Among alternative name-based systems, HTTP is the most significant by any...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Adding Data Parallelism to Streaming Pipelines for Throughput Optimization

    The streaming model is a popular model for writing high-throughput parallel applications. A streaming application is represented by a graph of computation stages that communicate with each other via FIFO channels. In this paper, the authors consider the problem of mapping streaming pipelines - streaming applications where the graph is...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Analysis of Global EDF for Parallel Tasks

    During the last decade, the performance increase of processor chips has come primarily from increasing numbers of cores. This has led to extensive work on real-time scheduling techniques that can exploit multicore and multiprocessor systems. Most prior work has concentrated on inter-task parallelism, where each task runs sequentially (and therefore...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Simple Analytic Performance Models for Streaming Data Applications Deployed on Diverse Architectures

    Modern hardware is inherently heterogeneous. With heterogeneity come multiple abstraction layers that hide underlying complex systems. While hidden, this complexity makes quantitative performance modeling a difficult task. Designers of high-performance streaming applications for heterogeneous systems must contend with unpredictable and often non-generalizable models to predict performance of a particular application...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    A Novel Incrementally-Deployable Multi-Granularity Multihoming Framework for the Future Internet

    Multihoming practice in the current Internet is limited to hosts and Autonomous Systems (ASs). It is "Connectivity-oriented" without support for user or data multihoming. However, the swift migration of Internet from "Connectivity-oriented" to "Content-oriented" pattern urges to incorporate user and data level multihoming support in architecture designs instead of just...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    OpenADN: Mobile Apps on Global Clouds Using OpenFlow and Software Defined Networking

    In recent years, there has been an explosive growth in mobile applications (apps), most of which need to serve global audiences using cloud based computing facilities. Cloud computing provides unique opportunities for the Application Service Providers (ASPs) to manage and optimize application delivery over geographically distributed computing resources. The authors...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    Limitations and Solutions for Real-Time Local Inter-Domain Communication in Xen

    As computer hardware becomes increasingly powerful, there is an ongoing trend towards integrating complex, legacy real-time systems using fewer hosts through virtualization. Especially in embedded systems domains such as avionics and automotive engineering, this kind of system integration can greatly reduce system weight, cost, and power requirements. When systems are...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    Optimal and Efficient Adaptation in Distributed Real-Time Systems with Discrete Rates

    Many distributed real-time systems face the challenge of dynamically maximizing system utility and meeting stringent resource constraints in response to fluctuations in system workload. Thus, online adaptation must be adopted in face of workload changes in such systems. The authors present the Multi-Parametric Rate Adaptation (MPRA) algorithm for discrete rate...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    A Framework for Smart Location-Based Automated Energy Controls in a Green Building Testbed

    Current building designs are not energy-efficient enough due to many reasons. One of them is the centralized control and fixed running policies (e.g. HVAC system) without considering the occupants' actual usage and adjusting the energy consumption accordingly. In this paper, the authors discuss their multidisciplinary project on a green building...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    A Memory Access Model for Highly-Threaded Many-Core Architectures

    Many-core architectures are excellent in hiding memory-access latency by low-overhead context switching among a large number of threads. The speedup of algorithms carried out on these machines depends on how well the latency is hidden. If the number of threads were infinite, then theoretically these machines should provide the performance...

    Provided By Washington Trust Bank

  • White Papers // Sep 2012

    Practical Control of Transmission Power for Wireless Sensor Networks

    Transmission Power Control (TPC) has the potential to reduce power consumption in Wireless Sensor Networks (WSNs). However, despite a multitude of existing protocols, they still face significant challenges in real-world deployments. A practical TPC protocol must be robust against complex and dynamic wireless properties, and efficient for resource-constrained sensors. This...

    Provided By Washington Trust Bank

  • White Papers // Jun 2012

    MCFlow: A Real-time Multi-core Aware Middleware for Dependent Task Graphs

    Driven by the evolution of modern computer architectures from uni-processor to multi-core platforms, there is an increasing need to provide light-weight, efficient, and predictable support for fine-grained parallel and distributed execution of soft real-time tasks with end-to-end timing constraints, modeled as directed acyclic graphs whose edges capture dependences among their...

    Provided By Washington Trust Bank

  • White Papers // Feb 2012

    Real-Time Scheduling of Parallel Tasks Under a General DAG Model

    Due to their potential to deliver increased performance over single-core processors, multi-core processors have become main-stream in processor design. Computation-intensive real-time systems must exploit intra-task parallelism to take full advantage of multi-core processing. However, existing results in real-time scheduling of parallel tasks focus on restrictive task models such as the...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Implementation and Evaluation of Mixed-Criticality Scheduling Approaches for Periodic Tasks

    Traditional fixed-priority scheduling analysis for periodic task sets is based on the assumption that all tasks are equally critical to the correct operation of the system. Therefore, every task has to be schedulable under the scheduling policy, and estimates of tasks' worst case execution times must be conservative in case...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Submodular Game for Distributed Application Allocation in Shared Sensor Networks

    Wireless sensor networks are evolving from single application platforms towards an integrated infrastructure shared by multiple applications. Given the resource constraints of sensor nodes, it is important to optimize the allocation of applications to maximize the overall Quality of Monitoring (QoM). Recent solutions to this challenging application allocation problem are...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments

    Mobile entity navigation in dynamic environments is an essential part of many mission critical applications like search and rescue and fire fighting. The dynamism of the environment necessitates the mo-bile entity to constantly maintain a high degree of awareness of the changing environment. This criteria makes it difficult to achieve...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Towards Configurable Real-Time Hybrid Structural Testing: A Cyber-Physical Systems Approach

    Real-time hybrid testing of civil structures represents a grand challenge in the emerging area of cyber-physical systems. Hybrid testing improves significantly on either purely numerical or purely empirical approaches by integrating physical structural components and computational models. Actuator dynamics, complex interactions among computers and physical components, and computation and communication...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    A Real-Time Performance Comparison of Distributable Threads and Event Channels

    In this paper, the authors have described the integration of release guards with distributable threads and federated event channels, to support predictable scheduling of end-to-end tasks in DRE middleware. They have systematically compared the performance of distributable threads and federated event channels for both random workloads and three canonical communication...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Spatiotemporal Query Strategies for Navigation in Dynamic Sensor Network Environments

    Autonomous mobile agent navigation is crucial to many mission-critical applications (e.g., search and rescue missions in a disaster area). In this paper, the authors present how sensor networks may assist Probabilistic Roadmap Methods (PRMs), a class of efficient navigation algorithms particularly suitable for dynamic environments. A key challenge of applying...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Efficient Power Management Based on Application Timing Semantics for Wireless Sensor Networks

    This paper proposes Efficient Sleep Scheduling based on Application Timing (ESSAT), a novel power management scheme that aggressively exploits the timing semantics of wireless sensor network applications. The authors present three ESSAT protocols each of which integrates a light-weight traffic shaper that actively shapes the workload inside the network to...

    Provided By Washington Trust Bank

  • White Papers // May 2011

    Evaluation of the Placement of Network Services

    Network services are used in the Internet today for a variety of functionality, from Voice over IP (VoIP) relays to network game servers. Determining the placement of these network services and measuring the quality of the placement in realistic scenarios is a challenging problem. This paper explores different methodologies for...

    Provided By Washington Trust Bank

  • White Papers // May 2011

    Service Area Optimization For Application Virtualization Using UMTS Mobility Model

    In this paper, the authors first introduce recent developments of the mobile computing devices and virtualization technologies available to deploy cross-platform application software. In their previous work, they proposed a distributed server arrangement and the corresponding hand-off protocol to provide smoother and more responsive user experience for application virtualization on...

    Provided By Washington Trust Bank

  • White Papers // Apr 2010

    Coordinating Resource Usage Through Adaptive Service Provisioning in Wireless Sensor Networks

    Wireless Sensor Networks (WSNs) exhibit high levels of net-work dynamics and consist of devices with limited energy. This results in the need to coordinate applications not only at the functional level, as is traditionally done, but also in terms of resource utilization. In this paper, the authors present a middleware...

    Provided By Washington Trust Bank

  • White Papers // Jan 2010

    Feedback Thermal Control for Real-Time Systems

    Thermal control is crucial to real-time systems as excessive processor temperature can cause system failure or unacceptable performance degradation due to hardware throttling. Real-time systems face significant challenges in thermal management as they must avoid processor overheating while still delivering desired real-time performance. Furthermore, many real-time systems must handle a...

    Provided By Washington Trust Bank

  • White Papers // Nov 2009

    On the Efficiency of Sequential Auctions for Spectrum Sharing

    In previous paper, the authors have studied the use of sequential second price auctions for sharing a wireless resource, such as bandwidth or power. The resource is assumed to be managed by a spectrum broker (auctioneer), who collects bids and allocates discrete units of the resource. It is well known...

    Provided By Washington Trust Bank

  • White Papers // Jun 2009

    Multi-Agent Distributed Adaptive Resource Allocation (MADARA)

    The component placement problem involves mapping a component to a particular location and maximizing component utility in grid and cloud systems. It is also an NP hard resource allocation and deployment problem, so many common grid and cloud computing libraries, such as MPICH and Hadoop, do not address this problem,...

    Provided By Washington Trust Bank

  • White Papers // Apr 2009

    Control-Theoretic Thermal Balancing for Clusters

    Thermal management is critical for clusters because of the increasing power consumption of modern processors, compact server architectures and growing server density in data centers. Thermal balancing mitigates hot spots in a cluster through dynamic load distribution among servers. This paper presents the Control-theoretical Thermal Balancing (CTB) algorithms that employ...

    Provided By Washington Trust Bank

  • White Papers // Apr 2008

    Practical Schedulability Analysis for Generalized Sporadic Tasks in Distributed Real-Time Systems

    Existing off-line schedulability analysis for real-time systems can only handle periodic or sporadic tasks with known minimum inter-arrival times. Modeling sporadic tasks with fixed minimum inter-arrival times is a poor approximation for systems in which tasks arrive in bursts, but have longer intervals between the bursts. In such cases, schedulability...

    Provided By Washington Trust Bank

  • White Papers // Nov 2013

    Real-Time Multi-Core Virtual Machine Scheduling in Xen

    Recent years have witnessed two major trends in the development of complex real-time systems. First, to reduce cost and enhance flexibility, multiple systems are sharing common computing platforms via virtualization technology, instead of being deployed separately on physically isolated hosts. Second, multicore processors are increasingly being used in real-time systems....

    Provided By Washington Trust Bank

  • White Papers // Mar 2014

    CloudPowerCap: Integrating Power Budget and Resource Management Across a Virtualized Server Cluster

    In many datacenters, server racks are highly underutilized. Rack slots are left empty to keep the sum of the server nameplate maximum power below the power provisioned to the rack. And the servers that are placed in the rack cannot make full use of available rack power. The root cause...

    Provided By Washington Trust Bank

  • White Papers // Apr 2014

    Practical Real-Time Scheduling for Parallel Tasks - From Theory to Platform

    In this paper, the authors review closely related work on both theoretical and system-based multiprocessor and parallel real-time scheduling. There has been a large body of work on real-time multiprocessor scheduling, both for global and partitioned schedulers, and for fixed and dynamic priority scheduling. Here, they review some of the...

    Provided By Washington Trust Bank

  • White Papers // Apr 2013

    Parallel Real-Time Scheduling of DAGs

    Recently, multi-core processors have become main-stream in processor design. To take full advantage of multi-core processing, computation-intensive real-time systems must exploit intra-task parallelism. In this paper, the authors address the open problem of real-time scheduling for a general model of deterministic parallel tasks, where each task is represented as a...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Adding Data Parallelism to Streaming Pipelines for Throughput Optimization

    The streaming model is a popular model for writing high-throughput parallel applications. A streaming application is represented by a graph of computation stages that communicate with each other via FIFO channels. In this paper, the authors consider the problem of mapping streaming pipelines - streaming applications where the graph is...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Analysis of Global EDF for Parallel Tasks

    During the last decade, the performance increase of processor chips has come primarily from increasing numbers of cores. This has led to extensive work on real-time scheduling techniques that can exploit multicore and multiprocessor systems. Most prior work has concentrated on inter-task parallelism, where each task runs sequentially (and therefore...

    Provided By Washington Trust Bank

  • White Papers // Feb 2013

    Simple Analytic Performance Models for Streaming Data Applications Deployed on Diverse Architectures

    Modern hardware is inherently heterogeneous. With heterogeneity come multiple abstraction layers that hide underlying complex systems. While hidden, this complexity makes quantitative performance modeling a difficult task. Designers of high-performance streaming applications for heterogeneous systems must contend with unpredictable and often non-generalizable models to predict performance of a particular application...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    Limitations and Solutions for Real-Time Local Inter-Domain Communication in Xen

    As computer hardware becomes increasingly powerful, there is an ongoing trend towards integrating complex, legacy real-time systems using fewer hosts through virtualization. Especially in embedded systems domains such as avionics and automotive engineering, this kind of system integration can greatly reduce system weight, cost, and power requirements. When systems are...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    A Memory Access Model for Highly-Threaded Many-Core Architectures

    Many-core architectures are excellent in hiding memory-access latency by low-overhead context switching among a large number of threads. The speedup of algorithms carried out on these machines depends on how well the latency is hidden. If the number of threads were infinite, then theoretically these machines should provide the performance...

    Provided By Washington Trust Bank

  • White Papers // Feb 2012

    Real-Time Scheduling of Parallel Tasks Under a General DAG Model

    Due to their potential to deliver increased performance over single-core processors, multi-core processors have become main-stream in processor design. Computation-intensive real-time systems must exploit intra-task parallelism to take full advantage of multi-core processing. However, existing results in real-time scheduling of parallel tasks focus on restrictive task models such as the...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Implementation and Evaluation of Mixed-Criticality Scheduling Approaches for Periodic Tasks

    Traditional fixed-priority scheduling analysis for periodic task sets is based on the assumption that all tasks are equally critical to the correct operation of the system. Therefore, every task has to be schedulable under the scheduling policy, and estimates of tasks' worst case execution times must be conservative in case...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    A Novel Incrementally-Deployable Multi-Granularity Multihoming Framework for the Future Internet

    Multihoming practice in the current Internet is limited to hosts and Autonomous Systems (ASs). It is "Connectivity-oriented" without support for user or data multihoming. However, the swift migration of Internet from "Connectivity-oriented" to "Content-oriented" pattern urges to incorporate user and data level multihoming support in architecture designs instead of just...

    Provided By Washington Trust Bank

  • White Papers // Dec 2012

    OpenADN: Mobile Apps on Global Clouds Using OpenFlow and Software Defined Networking

    In recent years, there has been an explosive growth in mobile applications (apps), most of which need to serve global audiences using cloud based computing facilities. Cloud computing provides unique opportunities for the Application Service Providers (ASPs) to manage and optimize application delivery over geographically distributed computing resources. The authors...

    Provided By Washington Trust Bank

  • White Papers // Apr 2009

    Control-Theoretic Thermal Balancing for Clusters

    Thermal management is critical for clusters because of the increasing power consumption of modern processors, compact server architectures and growing server density in data centers. Thermal balancing mitigates hot spots in a cluster through dynamic load distribution among servers. This paper presents the Control-theoretical Thermal Balancing (CTB) algorithms that employ...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments

    Mobile entity navigation in dynamic environments is an essential part of many mission critical applications like search and rescue and fire fighting. The dynamism of the environment necessitates the mo-bile entity to constantly maintain a high degree of awareness of the changing environment. This criteria makes it difficult to achieve...

    Provided By Washington Trust Bank

  • White Papers // Apr 2010

    Coordinating Resource Usage Through Adaptive Service Provisioning in Wireless Sensor Networks

    Wireless Sensor Networks (WSNs) exhibit high levels of net-work dynamics and consist of devices with limited energy. This results in the need to coordinate applications not only at the functional level, as is traditionally done, but also in terms of resource utilization. In this paper, the authors present a middleware...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Towards Configurable Real-Time Hybrid Structural Testing: A Cyber-Physical Systems Approach

    Real-time hybrid testing of civil structures represents a grand challenge in the emerging area of cyber-physical systems. Hybrid testing improves significantly on either purely numerical or purely empirical approaches by integrating physical structural components and computational models. Actuator dynamics, complex interactions among computers and physical components, and computation and communication...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    A Real-Time Performance Comparison of Distributable Threads and Event Channels

    In this paper, the authors have described the integration of release guards with distributable threads and federated event channels, to support predictable scheduling of end-to-end tasks in DRE middleware. They have systematically compared the performance of distributable threads and federated event channels for both random workloads and three canonical communication...

    Provided By Washington Trust Bank

  • White Papers // Jan 2010

    Feedback Thermal Control for Real-Time Systems

    Thermal control is crucial to real-time systems as excessive processor temperature can cause system failure or unacceptable performance degradation due to hardware throttling. Real-time systems face significant challenges in thermal management as they must avoid processor overheating while still delivering desired real-time performance. Furthermore, many real-time systems must handle a...

    Provided By Washington Trust Bank

  • White Papers // Jun 2012

    MCFlow: A Real-time Multi-core Aware Middleware for Dependent Task Graphs

    Driven by the evolution of modern computer architectures from uni-processor to multi-core platforms, there is an increasing need to provide light-weight, efficient, and predictable support for fine-grained parallel and distributed execution of soft real-time tasks with end-to-end timing constraints, modeled as directed acyclic graphs whose edges capture dependences among their...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    Optimal and Efficient Adaptation in Distributed Real-Time Systems with Discrete Rates

    Many distributed real-time systems face the challenge of dynamically maximizing system utility and meeting stringent resource constraints in response to fluctuations in system workload. Thus, online adaptation must be adopted in face of workload changes in such systems. The authors present the Multi-Parametric Rate Adaptation (MPRA) algorithm for discrete rate...

    Provided By Washington Trust Bank

  • White Papers // Apr 2008

    Practical Schedulability Analysis for Generalized Sporadic Tasks in Distributed Real-Time Systems

    Existing off-line schedulability analysis for real-time systems can only handle periodic or sporadic tasks with known minimum inter-arrival times. Modeling sporadic tasks with fixed minimum inter-arrival times is a poor approximation for systems in which tasks arrive in bursts, but have longer intervals between the bursts. In such cases, schedulability...

    Provided By Washington Trust Bank

  • White Papers // Oct 2012

    A Framework for Smart Location-Based Automated Energy Controls in a Green Building Testbed

    Current building designs are not energy-efficient enough due to many reasons. One of them is the centralized control and fixed running policies (e.g. HVAC system) without considering the occupants' actual usage and adjusting the energy consumption accordingly. In this paper, the authors discuss their multidisciplinary project on a green building...

    Provided By Washington Trust Bank

  • White Papers // Nov 2009

    On the Efficiency of Sequential Auctions for Spectrum Sharing

    In previous paper, the authors have studied the use of sequential second price auctions for sharing a wireless resource, such as bandwidth or power. The resource is assumed to be managed by a spectrum broker (auctioneer), who collects bids and allocates discrete units of the resource. It is well known...

    Provided By Washington Trust Bank

  • White Papers // May 2011

    Service Area Optimization For Application Virtualization Using UMTS Mobility Model

    In this paper, the authors first introduce recent developments of the mobile computing devices and virtualization technologies available to deploy cross-platform application software. In their previous work, they proposed a distributed server arrangement and the corresponding hand-off protocol to provide smoother and more responsive user experience for application virtualization on...

    Provided By Washington Trust Bank

  • White Papers // May 2011

    Evaluation of the Placement of Network Services

    Network services are used in the Internet today for a variety of functionality, from Voice over IP (VoIP) relays to network game servers. Determining the placement of these network services and measuring the quality of the placement in realistic scenarios is a challenging problem. This paper explores different methodologies for...

    Provided By Washington Trust Bank

  • White Papers // Jun 2009

    Multi-Agent Distributed Adaptive Resource Allocation (MADARA)

    The component placement problem involves mapping a component to a particular location and maximizing component utility in grid and cloud systems. It is also an NP hard resource allocation and deployment problem, so many common grid and cloud computing libraries, such as MPICH and Hadoop, do not address this problem,...

    Provided By Washington Trust Bank

  • White Papers // Mar 2013

    Experimental Evaluation of Content Distribution with NDN and HTTP

    Content distribution is a primary activity on the Internet. Name-centric network architectures support content distribution intrinsically. Named Data Networking (NDN), one recent such scheme, names packets rather than end-hosts, thereby enabling packets to be cached and redistributed by routers. Among alternative name-based systems, HTTP is the most significant by any...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Spatiotemporal Query Strategies for Navigation in Dynamic Sensor Network Environments

    Autonomous mobile agent navigation is crucial to many mission-critical applications (e.g., search and rescue missions in a disaster area). In this paper, the authors present how sensor networks may assist Probabilistic Roadmap Methods (PRMs), a class of efficient navigation algorithms particularly suitable for dynamic environments. A key challenge of applying...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Submodular Game for Distributed Application Allocation in Shared Sensor Networks

    Wireless sensor networks are evolving from single application platforms towards an integrated infrastructure shared by multiple applications. Given the resource constraints of sensor nodes, it is important to optimize the allocation of applications to maximize the overall Quality of Monitoring (QoM). Recent solutions to this challenging application allocation problem are...

    Provided By Washington Trust Bank

  • White Papers // Sep 2012

    Practical Control of Transmission Power for Wireless Sensor Networks

    Transmission Power Control (TPC) has the potential to reduce power consumption in Wireless Sensor Networks (WSNs). However, despite a multitude of existing protocols, they still face significant challenges in real-world deployments. A practical TPC protocol must be robust against complex and dynamic wireless properties, and efficient for resource-constrained sensors. This...

    Provided By Washington Trust Bank

  • White Papers // Jan 2012

    Efficient Power Management Based on Application Timing Semantics for Wireless Sensor Networks

    This paper proposes Efficient Sleep Scheduling based on Application Timing (ESSAT), a novel power management scheme that aggressively exploits the timing semantics of wireless sensor network applications. The authors present three ESSAT protocols each of which integrates a light-weight traffic shaper that actively shapes the workload inside the network to...

    Provided By Washington Trust Bank