基于到达时间优先的分块传输路由协议  

A data blocking routing protocol based on arrival time priority

作　　者：齐琪琪 崔学荣[2] 及美琪 徐彤 QI Qi-qi;CUI Xue-rong;JI Mei-qi;XU Tong(College of Computer Science and Technology,China University of Petroleum(East China),Qingdao 266580,Shandong Province,China;College of Oceanography and Space Informatics,China University of Petroleum(East China),Qingdao 266580,Shandong Province,China)

机构地区：[1]中国石油大学(华东)计算机科学与技术学院,山东青岛266580 [2]中国石油大学(华东)海洋与空间信息学院,山东青岛266580

出　　处：《信息技术》2021年第8期1-5,11,共6页Information Technology

基　　金：国家自然科学基金(91938204)。

摘　　要：针对现有船联网(Internet of Vessels,IOV)路由协议在大数据量传输时网络性能较低的问题,文中提出一种基于到达时间优先的分块传输路由协议DBT-ATP(Data Block Transmission-Arrival Time Priority),该协议通过比较相遇船舶的预计到岸时间选择中继节点,采用分块的方式转发大数据量消息。文中针对机会网络传输的特点,提出了归一化网络冗余率作为评价数据传输有效性的指标。仿真结果表明,消息数据量较大时,相比于Epidemic协议,DBT-ATP协议有效提高了消息送达率、减小了消息的传输时延,并且可以降低网络冗余率,是一种高效、节能的船联网路由算法。Based on the poor network performance when the Internet of Vessels(IOV)routing protocols transmit large amount of data,this paper proposed a data blocking routing protocol based on arrival time priority(Data Block Transmission-Arrival Time Priority,DBT-ATP).This routing protocol selects relay nodes by comparing the vessels’estimated time of arrival,and it adopts block forwarding to transmit volume messages.The normalized network redundancy rate is proposed to evaluate the effectiveness of data transmission on the basis of the transmission characteristics in opportunity network.The simulation results show that DBT-ATP routing protocol achieves better performance compared to the Epidemic protocol in the respect of the delivery rate,transmission average latency and redundancy rate when the message data quantity is large.Therefore,it is a high efficiency,energy saving routing protocol of Internet of Vessels.

关 键 词：船联网 分块传输 到达时间 大数据量消息 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]