Optimization-Based Fragmental Transmission Method for Video Data in Opportunistic Networks
Optimization-Based Fragmental Transmission Method for Video Data in Opportunistic Networks
复制标题
机会网络中基于优化的视频数据分片传输方法
DOI:
10.23919/tst.2017.7986942
复制
发表时间:
2017-09
影响因子:
6.6
通讯作者:
He Zaobo
中科院分区:
文献类型:
--
作者:
Li Peng;Wang Xiaoming;Lu Junling;Zhang Lichen;He Zaobo
: Multimedia data have become popularly transmitted content in opportunistic networks. A large amount of video data easily leads to a low delivery ratio. Breaking up these big data into small pieces or fragments is a reasonable option. The size of the fragments is critical to transmission efficiency and should be adaptable to the communication capability of a network. We propose a novel communication capacity calculation model of opportunistic network based on the classical random direction mobile model, define the restrain facts model of overhead, and present an optimal fragment size algorithm. We also design and evaluate the methods and algorithms with video data fragments disseminated in a simulated environment. Experiment results verified the effectiveness of the network capability and the optimal fragment methods.
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