UWSN中基于信息价值的数据传输方案  

Data transmission scheme based on value of information in underwater wireless sensor networks

作　　者：白钢华[1] 李王辉[1] 

机构地区：[1]鹤壁职业技术学院电子信息工程学院,河南鹤壁458030

出　　处：《电子技术应用》2015年第2期127-130,134,共5页Application of Electronic Technique

摘　　要：在水下传感器网络中,现有的数据传输策略没有对采集到的信息价值的重要性进行区别对待,降低了数据收集的意义。为此,以传输给陆地基站的数据信息价值最大为目标,针对水下传感获得的数据块的信息价值提出多种调度算法,以确定何时通过声学路由传输哪些数据,实现传递给用户的信息价值最大化。基于真实场景的仿真研究表明,可在本地估计数据块信息价值的算法可显著提高数据传输的信息价值。相反,没有在结点层面考虑信息价值量的策略和算法略优于只使用AUV进行数据采集的基准情况。In underwater wireless sensor networks, the existing data transmission strategies don＇t distinguish the importance of the value of information（VoI） collected for transmission, which reduces the significance of data collection. To solve this problem, this paper makes maximizing the value of information of the data delivered to the terrestrial station as the target. It proposes many scheduling strategies for the value of information of data chunks resulting from underwater observation to decide which data chunk to transmit and when, over the acoustic routes, which can maximum the value of information delivered to the us- er. Simulation studies on realistic scenarios show that scheduling algorithms that are able to locally estimate the value of infor- mation of a data chunk provide a significantly higher value of information of the delivered data. In contrast, uninformed algo- rithms, i.e., techniques that do not consider value of information at the node level, provide a marginal increase over using only the AUV for data collection.

关 键 词：水下传感器网络 数据传输 信息价值 调度算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]