Scheduling Mechanism

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Li Cheng-zhong - One of the best experts on this subject based on the ideXlab platform.

Chen Shu-yu - One of the best experts on this subject based on the ideXlab platform.

  • Two-level Scheduling Mechanism Supporting Real-time Cluster System
    Computer Science, 2008
    Co-Authors: Chen Shu-yu
    Abstract:

    We propose a real-time Scheduling Mechanism in cluster system,which provides real-time priority services by combining load balancing Scheduling in front-end and Scheduling algorithm based on length difference between real-time and non-real-time task queue in back-end.The new Scheduling Mechanism increases the utilization of cluster nodes in case of Scheduling only in front-end and enhances the response of real-time tasks.As is shown in the comparison experiments,the response time of real-time tasks is decreased observably under the condition of generating guaranteed throughput,the Mechanism provides a viable reference for the designing of distributed real-time Scheduling.

Yeongdae Kim - One of the best experts on this subject based on the ideXlab platform.

  • a real time Scheduling Mechanism for a flexible manufacturing system using simulation and dispatching rules
    International Journal of Production Research, 1998
    Co-Authors: K C Jeong, Yeongdae Kim
    Abstract:

    This paper presents a real-time Scheduling methodology which uses simulation and dispatching rules for flexible manufacturing systems. We develop a Scheduling Mechanism in which job dispatching rules vary dynamically based on information from discrete event simulation that is used for evaluating candidate dispatching rules. In this paper, we improve and extend a previous research on simulation-based real-time Scheduling by suggesting a more systematic framework for the Scheduling Mechanism through refinement of functions of modules in the Mechanism, and by presenting and analysing various Scheduling strategies used to operate the Mechanism. The strategies are formed by combining two factors that might influence the performance of the Mechanism: type of simulation model which is used in the Mechanism and points of time when new dispatching rules are selected. In order to compare performance of the Scheduling strategies, computational experiments are performed and results are reported.

Manzoor Ilahi - One of the best experts on this subject based on the ideXlab platform.

  • realistic Scheduling Mechanism for smart homes
    Energies, 2016
    Co-Authors: Danish Mahmood, Nadeem Javaid, Nabil Alrajeh, Zahoor Ali Khan, Umar Qasim, Imran Ahmed, Manzoor Ilahi
    Abstract:

    In this work, we propose a Realistic Scheduling Mechanism (RSM) to reduce user frustration and enhance appliance utility by classifying appliances with respective constraints and their time of use effectively. Algorithms are proposed regarding functioning of home appliances. A 24 hour time slot is divided into four logical sub-time slots, each composed of 360 min or 6 h. In these sub-time slots, only desired appliances (with respect to appliance classification) are scheduled to raise appliance utility, restricting power consumption by a dynamically modelled power usage limiter that does not only take the electricity consumer into account but also the electricity supplier. Once appliance, time and power usage limiter modelling is done, we use a nature-inspired heuristic algorithm, Binary Particle Swarm Optimization (BPSO), optimally to form schedules with given constraints representing each sub-time slot. These schedules tend to achieve an equilibrium amongst appliance utility and cost effectiveness. For validation of the proposed RSM, we provide a comparative analysis amongst unscheduled electrical load usage, scheduled directly by BPSO and RSM, reflecting user comfort, which is based upon cost effectiveness and appliance utility.

Bijan Vosoughi Vahdat - One of the best experts on this subject based on the ideXlab platform.

  • WCNC - An energy-efficient multi-sensor Scheduling Mechanism with QoS support for WBANs
    2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
    Co-Authors: Hamed Omidvar, Farid Ashtiani, Tara Javidi, Masoumeh Nasiri-kenari, Bijan Vosoughi Vahdat
    Abstract:

    In wireless body area networks (WBANs) it is necessary to devise an energy-efficient MAC Scheduling Mechanism which is capable of meeting strict QoS requirements. In this paper, special characteristics of WBAN channels, namely, the slow fading, the periodicity of fading, and the correlation among the channels have been exploited to formulate the sensor Scheduling problem as a partially observable Markov decision problem (POMDP). Specific algorithms based on value iteration and pruning have been proposed in order to reduce the computational burden associated with the corresponding POMDP. The proposed Scheduling Mechanism is compared against a TDMA Scheduling for a three-sensor network, and an average 22-32% improvement in energy consumption and slight improvement in reliability is reported.