Optimal ThrowBoxes assignment for big data multicast in VDTNs

Optimal ThrowBoxes assignment for big data multicast in VDTNs
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VDTN 中大数据组播的最佳 ThrowBox 分配

DOI:
10.1007/s11276-019-01974-z
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发表时间:
2019-03
期刊:
影响因子:
3
通讯作者:
Tingting Fu
Tingting Fu
中科院分区:
计算机科学4区
文献类型:
--
作者:
Peng Liu;Yue Ding;Tingting Fu

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如今,车辆已经配备了各种传感器,不断产生所谓的大数据。其中,多媒体内容构成了总生成数据的主要部分。它们通常在感兴趣区域的车辆之间共享,而对延迟标准的关注较少。因此,为了降低成本,这些数据将在车辆延迟容忍网络中使用结转方法进行传递。由于这些数据量不可忽略,因此在设计转发策略时不仅要考虑传递效用,还要考虑内存空间的使用。投掷箱已被用来增加遭遇机会。在本文中,我们开发了一种最佳数据包分配算法,以实现 ThrowBox 之间的全局最大传递效用。我们用现实世界的数据跟踪来评估所提出的方案。结果表明,我们的方案在延迟、送达率、成本等指标上取得了更好的性能。
Nowadays, vehicles have been equipped with various kinds of sensors which produce so called big data constantly. Among them, multimedia contents form the major part of the total generated data. They are usually shared among vehicles in a region of interest with less concerns on delay criteria. Therefore, to reduce cost, these data will be delivered using a carry-and-forward method in a Vehicular Delay Tolerant Network. Since the volume of these data is not negligible, not only delivery utility but also memory space usage must be considered while designing forwarding strategy. ThrowBoxes have been utilized to increase encountering opportunities. In this paper, we develop an optimal data packet assignment algorithms to achieve global maximum delivery utilities among ThrowBoxes. We evaluate the proposed scheme with the real world data trace. The results show that our scheme achieves better performance in terms of delay, delivery ratio, cost and other metrics.
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