北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (6): 70-73.doi: 10.13190/jbupt.201206.70.fangj

• 论文 • 上一篇    下一篇

基于多描述编码的WMSN传输性能

凡高娟, 张重生, 元沐南   

  1. 河南大学 计算机与信息工程学院, 河南 开封 475004
  • 收稿日期:2012-07-18 修回日期:2012-09-05 出版日期:2012-12-28 发布日期:2013-01-07
  • 通讯作者: 张重生 E-mail:chongsheng.zhang@henu.edu.cn
  • 作者简介:凡高娟(1983-),女,博士,讲师,E-mail:fangaojuan@henu.edu.cn
  • 基金资助:

    国家自然科学基金项目(61170243);河南省科技攻关重点项目(122102210053);江苏省无线传感网高技术研究重点实验室开放课题(WSNLK201101);河南大学校内基金项目(2011YBZR025,2012ZRZD09)

Multiple Description Coding Based Transmission Performance in Wireless Multimedia Sensor Networks

FAN Gao-juan, ZHANG Chong-sheng, YUAN Mu-nan   

  1. School of Computer and Information Engineering, Henan University, Henan Kaifeng 475004, China
  • Received:2012-07-18 Revised:2012-09-05 Online:2012-12-28 Published:2013-01-07

摘要:

针对无线多媒体传感器网络(WMSN)数据传输存在无线链路差、传输质量要求高等问题,提出一种基于多描述编码的传输策略.该策略利用源节点进行多描述编码,通过选择初始分发节点,形成多个转发路径. 以图像传输为实例,从数据到达率、图像传输前后的对比、峰值信噪比等参数对该策略进行性能验证. 仿真结果表明,该传输策略能解决无线链路不稳定性带来的问题,并保证数据传输的可靠性.

关键词: 多描述编码, 无线多媒体传感器网络, 性能

Abstract:

A multiple description coding transmission strategy proposed to solve the problem of low wireless network connectivity but high transmission quality requirements in wireless multimedia sensor networks (WMSN). This strategy makes multiple descriptions coding on the source node, selects initial broadcasting nodes, and then builds multiple transmission paths. The strategy is applied in image transmission application where the performance is evaluated in terms of data arrival ratio, and comparied between transmitted image, the original one, and peak signal to noise ratio. Experiment shows that the strategy improves wireless network connectivity and assures transmission reliability of WMSN.

Key words: multiple description coding, wireless multimedia sensor networks, performance

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