政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/15015
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    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/15015


    Title: Efficient Index and Data Allocation for Wireless Broadcast Services
    Authors: 陳良弼
    Lo, Shou-Chih;Chen, Arbee L.P.
    Keywords: Mobile computing;Data broadcast;Broadcast channels;Data allocation;Index replication
    Date: 2007-01
    Issue Date: 2008-12-16 16:48:27 (UTC+8)
    Abstract: The periodic broadcasting of frequently requested data can reduce the workload of uplink channels and improve data access for users in a wireless network. Since mobile devices have limited energy capacities associated with their reliance on battery power, it is important to minimize the time and energy spent on accessing broadcast data. The indexing and scheduling of broadcast data play a key role in this problem. In this paper, we formulate the index and data allocation problem and propose a solution that can adapt to any number of broadcast channels. We first restrict the considered problem to a scenario with no index/data replication, and introduce an optimal solution and a heuristic solution to the single-channel and multichannel cases, respectively. Then, we discuss how to replicate indexes on the allocation to further improve the performance. The results from some experiments demonstrate the superiority of our proposed approach.
    Relation: Data & Knowledge Engineering, 60(1), 235-255
    Data Type: article
    DOI link: http://dx.doi.org/10.1016/j.datak.2006.02.002
    DOI: 10.1016/j.datak.2006.02.002
    Appears in Collections:[Department of Computer Science ] Periodical Articles

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