The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform

Nancy Jesuale - One of the best experts on this subject based on the ideXlab platform.

  • Public safety radios must pool spectrum
    IEEE Communications Magazine, 2009
    Co-Authors: William Lehr, Nancy Jesuale
    Abstract:

    The dynamic-spectrum-access research and development community is maturing technologies that will enable radios to share RF spectrum much more intensively. The adoption of DSA technologies by the public-safety community can better align systems with the future of wireless services, in general, and can contribute to making next-generation public-safety radio systems more robust, capable, and flexible. A critical first step toward a DSA-enabled future is to reform spectrum management to create spectrum pools that DSA-enabled devices, such as cognitive radios, can use iquest under the control of more dynamically flexible and adaptive prioritization policies than is possible with Legacy Technology. Appropriate reform will enable spectrum portability, facilitating the decoupling of spectrum rights from the provision of infrastructure. This article examines the economic, policy, and market challenges of enabling spectrum pooling and portability for public-safety radios.

  • Spectrum Pooling for Next Generation Public Safety Radio Systems
    2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2008
    Co-Authors: William Lehr, Nancy Jesuale
    Abstract:

    The dynamic spectrum access (DSA) research and development community is maturing technologies that will enable radios to share RF spectrum much more intensively. Adoption of DSA technologies by the public safety community can better align systems with the future of wireless services more generally and can contribute to making next generation public safety radio systems more robust, capable, and flexible. A critical first step toward a DSA-enabled future is to reform spectrum management in order to create spectrum pools that DSA-enabled devices such as cognitive radios (CRs) may make use of under the control of more dynamically flexible and adaptive prioritization policies than is possible with Legacy Technology. Appropriate reform will enable spectrum portability, facilitating the decoupling of spectrum rights from the provision of infrastructure. This paper examines the economic, policy, and market challenges of enabling spectrum pooling and portability for public safety radios.

William Lehr - One of the best experts on this subject based on the ideXlab platform.

  • Public safety radios must pool spectrum
    IEEE Communications Magazine, 2009
    Co-Authors: William Lehr, Nancy Jesuale
    Abstract:

    The dynamic-spectrum-access research and development community is maturing technologies that will enable radios to share RF spectrum much more intensively. The adoption of DSA technologies by the public-safety community can better align systems with the future of wireless services, in general, and can contribute to making next-generation public-safety radio systems more robust, capable, and flexible. A critical first step toward a DSA-enabled future is to reform spectrum management to create spectrum pools that DSA-enabled devices, such as cognitive radios, can use iquest under the control of more dynamically flexible and adaptive prioritization policies than is possible with Legacy Technology. Appropriate reform will enable spectrum portability, facilitating the decoupling of spectrum rights from the provision of infrastructure. This article examines the economic, policy, and market challenges of enabling spectrum pooling and portability for public-safety radios.

  • Spectrum Pooling for Next Generation Public Safety Radio Systems
    2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2008
    Co-Authors: William Lehr, Nancy Jesuale
    Abstract:

    The dynamic spectrum access (DSA) research and development community is maturing technologies that will enable radios to share RF spectrum much more intensively. Adoption of DSA technologies by the public safety community can better align systems with the future of wireless services more generally and can contribute to making next generation public safety radio systems more robust, capable, and flexible. A critical first step toward a DSA-enabled future is to reform spectrum management in order to create spectrum pools that DSA-enabled devices such as cognitive radios (CRs) may make use of under the control of more dynamically flexible and adaptive prioritization policies than is possible with Legacy Technology. Appropriate reform will enable spectrum portability, facilitating the decoupling of spectrum rights from the provision of infrastructure. This paper examines the economic, policy, and market challenges of enabling spectrum pooling and portability for public safety radios.

L. Mikulich - One of the best experts on this subject based on the ideXlab platform.

  • Richard Orwig
    1998
    Co-Authors: Douglas L. Dean, L. Mikulich
    Abstract:

    In this dynamic age of corporate acquisitions, mergers, and downsizing, decisions concerning optimization of workflow require workflow modeling and, potentially, evaluation of Legacy Technology that supports the workflow as represented in the model. This paper describes a case study of workflow modeling and the method of evaluation used by a Department of Defense (DoD) to determine the optimal information system to be used in supporting the workflow. The workflow that was modeled was the business of hazardous material and hazardous waste management at any typical DoD military installation. The workflow model consisted of 65 business activities organized in a hierarchical manner as identified and defined by DoD hazardous substance and hazardous waste subject matter experts. These activities served as the foundation for the creation of a questionnaire of 165 questions that was used to select three information systems out of the over three hundred known systems that supported one or more of the 65 workflow activities within the DoD. In effect, this DoD experience demonstrated the effectiveness of an EMS- supported modeling methodology and a method for the creation of an instrument for the evaluation of Legacy systems based upon the workflow model. We argue that this method is generalizable to any organization that needs to develop criteria for evaluation of information systems that support workflow.

  • HICSS (4) - A method for evaluating information systems from workflow models: Results from a case study
    Proceedings of the Thirty-First Hawaii International Conference on System Sciences, 1998
    Co-Authors: R. Orwig, Douglas L. Dean, L. Mikulich
    Abstract:

    In this dynamic age of corporate acquisitions, mergers, and downsizing, decisions concerning optimization of workflow require workflow modeling and, potentially, evaluation of Legacy Technology that supports the workflow as represented in the model. This paper describes a case study of workflow modeling and the method of evaluation used by a Department of Defense (DoD) to determine the optimal information system to be used in supporting the workflow. The workflow that was modeled was the business of hazardous material and hazardous waste management at any typical DoD military installation. The workflow model consisted of 65 business activities organized in a hierarchical manner as identified and defined by DoD hazardous substance and hazardous waste subject matter experts. These activities served as the foundation for the creation of a questionnaire of 165 questions that was used to select three information systems out of the over three hundred known systems that supported one or more of the 65 workflow activities within the DoD. In effect, this DoD experience demonstrated the effectiveness of an EMS-supported modeling methodology and a method for the creation of an instrument for the evaluation of Legacy systems based upon the workflow model. We argue that this method is generalizable to any organization that needs to develop criteria for evaluation of information systems that support workflow.

  • A method for evaluating information systems from workflow models: Results from a case study
    Proceedings of the Thirty-First Hawaii International Conference on System Sciences, 1998
    Co-Authors: R. Orwig, D. Dean, L. Mikulich
    Abstract:

    In this dynamic age of corporate acquisitions, mergers, and downsizing, decisions concerning optimization of workflow require workflow modeling and, potentially, evaluation of Legacy Technology that supports the workflow as represented in the model. This paper describes a case study of workflow modeling and the method of evaluation used by a Department of Defense (DoD) to determine the optimal information system to be used in supporting the workflow. The workflow that was modeled was the business of hazardous material and hazardous waste management at any typical DoD military installation. The workflow model consisted of 65 business activities organized in a hierarchical manner as identified and defined by DoD hazardous substance and hazardous waste subject matter experts. These activities served as the foundation for the creation of a questionnaire of 165 questions that was used to select three information systems out of the over three hundred known systems that supported one or more of the 65 workflow activities within the DoD. In effect, this DoD experience demonstrated the effectiveness of an EMS-supported modeling methodology and a method for the creation of an instrument for the evaluation of Legacy systems based upon the workflow model. We argue that this method is generalizable to any organization that needs to develop criteria for evaluation of information systems that support workflow.

Gilbert Owusu - One of the best experts on this subject based on the ideXlab platform.

  • Spares parts optimization for Legacy telecom networks using a permutation-based evolutionary algorithm
    2017 IEEE Congress on Evolutionary Computation (CEC), 2017
    Co-Authors: Sid Shakya, Carla Di Cairano-gilfedder, Gilbert Owusu
    Abstract:

    Large service organizations such as telecom or utility companies face numerous decision management problems, many of which are related to the management of various resources. The management of spare parts and inventory is one of the key resource management problems an organization faces on a daily basis. Especially their timely availability can have serious impacts on the service quality and the customer satisfaction. Lack of visibility and availability of spare parts in the right place and at the right time can lead to traveling longer distance to supply the parts or in worst case a disruption of the service. We propose to automate the management of spare parts for a Legacy Technology in a telecom network by leveraging an evolutionary algorithm for optimizing the distribution of spare parts. Our results show that a significant gain can be made in comparison to a assignment typically performed in a manual mechanism.

  • CEC - Spares parts optimization for Legacy telecom networks using a permutation-based evolutionary algorithm
    2017 IEEE Congress on Evolutionary Computation (CEC), 2017
    Co-Authors: Sid Shakya, Carla Di Cairano-gilfedder, Gilbert Owusu
    Abstract:

    Large service organizations such as telecom or utility companies face numerous decision management problems, many of which are related to the management of various resources. The management of spare parts and inventory is one of the key resource management problems an organization faces on a daily basis. Especially their timely availability can have serious impacts on the service quality and the customer satisfaction. Lack of visibility and availability of spare parts in the right place and at the right time can lead to traveling longer distance to supply the parts or in worst case a disruption of the service. We propose to automate the management of spare parts for a Legacy Technology in a telecom network by leveraging an evolutionary algorithm for optimizing the distribution of spare parts. Our results show that a significant gain can be made in comparison to a assignment typically performed in a manual mechanism.

Vincenzo Sciancalepore - One of the best experts on this subject based on the ideXlab platform.

  • Context Information for Fast Cell Discovery in mm-wave 5G Networks
    Proceedings of European Wireless 2015; 21th European Wireless Conference, 2015
    Co-Authors: Antonio Capone, Ilario Filippini, Vincenzo Sciancalepore
    Abstract:

    The exploitation of the mm-wave bands is one of the most promising solutions for 5G mobile radio networks. However, the use of mm-wave technologies in cellular networks is not straightforward due to mm-wave harsh propagation conditions that limit access availability. In order to overcome this obstacle, hybrid network architectures are being considered where mmwave small cells can exploit an overlay coverage layer based on Legacy Technology. The additional mm-wave layer can also take advantage of a functional split between control and user plane, that allows to delegate most of the signaling functions to Legacy base stations and to gather context information from users for resource optimization. However, mm-wave Technology requires high gain antenna systems to compensate for high path loss and limited power, e.g., through the use of multiple antennas for high directivity. Directional transmissions must be also used for the cell discovery and synchronization process, and this can lead to a non-negligible delay due to the need to scan the cell area with multiple transmissions at different directions. In this paper, we propose to exploit the context information related to user position, provided by the separated control plane, to improve the cell discovery procedure and minimize delay. We investigate the fundamental trade-offs of the cell discovery process with directional antennas and the effects of the context information accuracy on its performance. Numerical results are provided to validate our observations.

  • Context Information for Fast Cell Discovery in mm-wave 5G Networks
    2015
    Co-Authors: Antonio Capone, Ilario Filippini, Vincenzo Sciancalepore
    Abstract:

    The exploitation of the mm-wave bands is one of the most promising solutions for 5G mobile radio networks. However, the use of mm-wave technologies in cellular networks is not straightforward due to mm-wave severe propagation conditions that limit access availability. In order to overcome this obstacle, hybrid network architectures are being considered where mm-wave small cells can exploit an overlay coverage layer based on Legacy Technology. The additional mm-wave layer can also take advantage of a functional split between control and user plane, that allows to delegate most of the signaling functions to Legacy base stations and to gather context information from users for resource optimization. However, mm-wave Technology requires multiple antennas and highly directional transmissions to compensate for high path loss and limited power. Directional transmissions must be also used for the cell discovery and synchronization process, and this can lead to a non negligible delay due to need to scan the cell area with multiple transmissions in different angles. In this paper, we propose to exploit the context information related to user position, provided by the separated control plane, to improve the cell discovery procedure and minimize delay. We investigate the fundamental trade-offs of the cell discovery process with directional antennas and the effects of the context information accuracy on its performance. Numerical results are provided to validate our observations.

  • context based cell search in millimeter wave 5g networks
    arXiv: Networking and Internet Architecture, 2015
    Co-Authors: Antonio Capone, Ilario Filippini, Vincenzo Sciancalepore
    Abstract:

    The exploitation of the mm-wave bands is one of the most promising solutions for 5G mobile radio networks. However, the use of mm-wave technologies in cellular networks is not straightforward due to mm-wave severe propagation conditions that limit access availability. In order to overcome this obstacle, hybrid network architectures are being considered where mmwave small cells can exploit an overlay coverage layer based on Legacy Technology. The additional mm-wave layer can also take advantage of a functional split between control and user plane, that allows to delegate most of the signaling functions to Legacy base stations and to gather context information from users for resource optimization. However, mm-wave Technology requires multiple antennas and highly directional transmissions to compensate for high path loss and limited power. Directional transmissions must be also used for the cell discovery and synchronization process, and this can lead to a non negligible delay due to need to scan the cell area with multiple transmissions in different angles. In this paper, we propose to exploit the context information related to user position, provided by the separated control plane, to improve the cell search procedure and minimize delay. We investigate the fundamental trade-offs of the cell discovery process with directional antennas and the effects of the context information accuracy on its performance. Numerical results are provided to validate our observations.