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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51627

    Title: Disseminating data with time constraint based on multichannel over ubiquitous computing environments
    Authors: Chiang,DJ;Shih,TK;Chen,CL
    Contributors: 資訊工程學系
    Date: 2011
    Issue Date: 2012-03-27 18:57:52 (UTC+8)
    Publisher: 國立中央大學
    Abstract: Time-constrained service plays an important role in ubiquitous services. However, the resource constraints of ubiquitous computing systems make it difficult to satisfy timing requirements of supported strategies. In this study, we study scheduling strategies for mobile data program with timing constraints in the form of deadlines. Unlike previously proposed scheduling algorithms for mobile systems which aim to minimize the mean access time, our goal is to identify scheduling algorithms for ubiquitous systems that ensure requests meet their deadlines. We present a study of the performance of traditional real-time strategies, and demonstrate that traditional real-time algorithms do not always perform the best in a mobile environment. We propose an efficient scheduling algorithm, called scheduling priority of mobile data with time constraint(SPMT), which is designed for timely delivery of data to mobile clients. The experimental results show that our approach outperforms other approaches over performance criteria.
    Appears in Collections:[資訊工程學系] 期刊論文

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