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首页> 外文期刊>Journal of digital information management >A Cloud-Assisted Architecture for Content Distribution in Mobile Peer to Peer Networks
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A Cloud-Assisted Architecture for Content Distribution in Mobile Peer to Peer Networks

机译：一种云辅助架构的移动点对点网络中的内容分发

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摘要

Content distribution is a key technology to achieve data sharing among mobile terminals in Mobile Peer to Peer (MP2P) networks. Nevertheless, in the dynamic/mobile environment, the poor computing ability and storage capability of a single node make it difficult to share the content among nodes. In order to enhance the capability of the mobile terminals and improve the efficiency of content distribution, a cloud-assisted architecture to offload the heavy computation load from the mobile nodes to the cloud was put forward. Furthermore, a Multi-Tree Structure of Internal Node Disjoint (MTSIND) data transfer topology was proposed, in which their internal nodes are disjoint, thus each node can take part in the content delivery tasks. Finally, an exclusive-OR (XOR) network coding method based on vertex coloring problem was established to reduce the number of transmissions and power consumption. Simulation and numerical results were provided to support the analyses and results. Results show that the content distribution mechanism can reduce the total number of the data packets and the energy consumption. The study proves that the research of content distribution mechanism on MP2P has a great significance on reducing the number of data transmissions, lowering the power consumption of terminals and increasing the resource utilization of mobile nodes.
机译：内容分发是在移动对等（MP2P）网络中的移动终端之间实现数据共享的一项关键技术。然而，在动态/移动环境中，单个节点的较差的计算能力和存储能力使得难以在节点之间共享内容。为了增强移动终端的能力并提高内容分发的效率，提出了一种云辅助架构，将繁重的计算负载从移动节点转移到云中。此外，提出了一种内部节点不相交的多树结构（MTSIND）数据传输拓扑结构，其中内部节点不相交，因此每个节点都可以参与内容传递任务。最后，建立了一种基于顶点着色问题的异或（XOR）网络编码方法，以减少传输次数和功耗。提供了仿真和数值结果以支持分析和结果。结果表明，内容分发机制可以减少数据包的总数和能耗。研究证明，基于MP2P的内容分发机制的研究对减少数据传输数量，降低终端功耗，提高移动节点资源利用率具有重要意义。

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