电子学报 ›› 2018, Vol. 46 ›› Issue (9): 2165-2172.DOI: 10.3969/j.issn.0372-2112.2018.09.017

• 学术论文 • 上一篇    下一篇

机会网络视频数据的分块渐进传输新方法

李鹏1,2,3, 王小明1,2,3, 张立臣1,2,3, 卢俊岭1,2,3, 朱腾蛟2,3, 张丹2,3   

  1. 1. 陕西师范大学现代教学技术教育部重点实验室, 陕西西安 710119;
    2. 陕西省教学信息与技术工程实验室, 陕西 710119;
    3. 陕西师范大学计算机科学学院, 陕西西安 710119
  • 收稿日期:2017-05-04 修回日期:2017-10-24 出版日期:2018-09-25
    • 通讯作者:
    • 王小明
    • 作者简介:
    • 李鹏 男,1981年生于陕西扶风,博士,讲师.主要研究方向为物联网、机会网络、移动计算、多媒体信息处理等.E-mail:lipeng@snnu.edu.cn;张立臣 男,1979年生于河北宁晋,博士,副教授.主要研究方向为物联网、机会网络、移动计算等.E-mail:zhanglichen@snnu.edu.cn;卢俊岭 男,1972年生于河南武陟,博士,讲师.主要研究方向为隐私保护、社会网络、无线网络路由.E-mail:lujunl@snnu.edu.cn
    • 基金资助:
    • 国家重点研发计划 (No.2017YFB142102); 国家自然科学基金 (No.61702317,No.61402273,No.61373083); 国家留学基金 (No.201506875069); 陕西省自然科学基础研究计划项目 (No.2015JQ6238,No.2017JM6060,No.2017JM6103); 中央高校基本科研业务费专项资金 (No.GK201803082,No.GK201401002,No.GK201703061); 陕西省重点科技创新团队项目 (No.2014KTC-18); 高等学校学科创新引智计划 (No.B16031).

A Novel Method of Video Data Fragmentary and Progressive Transmission in Opportunistic Network

LI Peng1,2,3, WANG Xiao-ming1,2,3, ZHANG Li-chen1,2,3, LU Jun-ling1,2,3, ZHU Teng-jiao2,3, ZHANG Dan2,3   

  1. 1.Ministry of Education Key Laboratory for Modern Teaching Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China;
    2.Engineeruny Laboratory of Teach Information Technology of Shaanxi Province, Xi'an, Shaanxi 710119, China;
    3.School of Computer Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
  • Received:2017-05-04 Revised:2017-10-24 Online:2018-09-25 Published:2018-09-25
    • Corresponding author:
    • WANG Xiao-ming
    • Supported by:
    • National Natural Science Foundation of China (No.2017YFB142102); National Natural Science Foundation of China (No.61702317, No.61402273, No.61373083); China Scholarship Council (No.201506875069); Supported by the Natural Science Basis Research Plan in Shaanxi Province of China (No.2015JQ6238, No.2017JM6060, No.2017JM6103); Fundamental Research Funds for the Central Universities (No.GK201803082, No.GK201401002, No.GK201703061); Key Science and Technology Innovation Team of Shaanxi Province (No.2014KTC-18); Overseas Expertise Introduction Project for Discipline Innovation  (“111Project”) (No.B16031)

摘要: 各类移动多媒体智能终端的普及使得设备间的自组织机会通信成为国际研究热点,而移动节点间的机会通信方式已无法满足日益增长的多媒体传输需求.面向机会组网与视频内容传输问题,基于机会网络实际通信能力计算,提出了一种视频分块大小最优化计算方法,使机会网络通信能力得到最大化利用;提出了一种能够实现渐进式接收视频分块的路由调度算法,建立分块紧缺度模型,引导分块在目标节点趋于均匀分布.实验结果表明,该方法能在恶劣通信环境下实现高效的视频数据预览与传输,可为相关视频内容的无线移动传输提供支持.

关键词: 机会网络, 分块传输, 调度算法

Abstract: Ad hoc opportunistic communication has become a hotspot with the popularity of various mobile multimedia intelligent terminals. However, the opportunistic communication style among mobile nodes cannot satisfy the growing of multimedia transmission. Aiming to the issues of opportunistic networking and video content transmission, based on the opportunistic network communication capability calculation, we proposed a method of calculating the optimal size of video fragment. The method could maximize the use of network communication capabilities. After that, a video routing and scheduling algorithm is proposed to receive video fragments progressively, and to create fragment priority model which results to uniform fragments distribution at destination node. The experimental results show that the proposed methods can make efficient video content preview and transmission in challenging communication environment, and can support the related video content transmission in wireless mobile environment.

Key words: opportunistic networks, fragment transmission, scheduling algorithm

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