视频传感器网络内容相关性感知的通信协议研究  

Research on content correlation-aware communication protocol for video sensor networks

作　　者：马丁[1] 白光伟[1,2] 沈航[2] 张芃[1] 

机构地区：[1]南京工业大学计算机科学与技术系,南京211816 [2]南京理工大学高维信息智能感知与系统教育部重点实验室,南京210094

出　　处：《计算机应用研究》2014年第12期3762-3765,3769,共5页Application Research of Computers

基　　金：国家自然科学基金资助项目(60673185;61073197);江苏省自然科学基金资助项目(BK2010548);江苏省科技支撑计划资助项目(工业)(BE2011186);江苏省普通高校研究生科研创新计划资助项目(CXLX11_0262)

摘　　要：无线视频传感器网络中节点的能量有限,如何充分利用有限的能量是当前的一个研究热点。提出了一种基于内容相关性感知的视频传感器网络通信协议(VCCP),通过数学建模对典型的WSN路由协议进行优化,在保证视频传输质量的前提下,将冗余数据进行适当压缩,目的是节约网络带宽、降低能量消耗、延长网络的生命周期。另外,为了尽可能提高监测区域整体覆盖率以及解决局部覆盖率"骤降"问题,分别提出了对节点感知角度调整和"伪簇头"的优化方案。仿真结果表明,VCCP延长了网络生命周期,且在一定程度上提高了监测区域覆盖率。The node energy in wireless video sensor networks is limited by many factors. How to take advantage of the limited energy is one of key research issues recently. The focus of this paper was on investigating a video correlation communication（ VCCP） protocol based on content related sensing. It optimized topical WSN routing protocol through mathematical model.The purpose was to save network bandwidth and energy,as a result to prolong network lifecycle. It compressed the redundant data while satisfying the requirement in video transmission quality. In addition,this paper introduced angular adjustment and pseudo cluster head protocols to improve overall coverage rate of monitoring region,therefore avoiding coverage rate reduction in specific region. The simulation result shows that the proposed VCCP can prolong network lifecycle and enhance coverage rate of monitoring region to some extent.

关 键 词：视频传感器网络 内容相关性 覆盖率 网络生命周期 

分 类 号：TN915.04[电子电信—通信与信息系统]