基于时间竞争的海洋物联网性能优化策略  

Optimization Strategy of Internet of Marine Things Based on Time-Competition

作　　者：窦金凤[1] 王丽娟 瞿常睿 初蕾 曹家宝 DOU Jin-Feng;WANG Li-Juan;QU Chang-Rui;CHU Lei;CAO Jia-Bao(College of Information Science & Engineering, Ocean University of China, Qingdao 266100, China;Lucent Technologies Qingdao, Qingdao 266010, China)

机构地区：[1]中国海洋大学信息科学与工程学院,山东青岛266100 [2]青岛朗讯科技通信设备有限公司,山东青岛266010

出　　处：《中国海洋大学学报（自然科学版）》2020年第11期105-111,共7页Periodical of Ocean University of China

基　　金：山东省自然科学基金面上项目(ZR201702170341);校级研究生教育质量提升计划项目(HDYJ18008,HDYJ18006)资助。

摘　　要：海洋物联网是部署在海洋中的智能互联网络,由于部署环境的特殊性,其感知层网络常常存在“热区”现象,给优化网络带宽、能量、通信可靠性等性能带来很大挑战。本文研究高效可靠的路由策略以优化海洋物联网的网络通信性能,提出了一种基于时间竞争的简单机会路由,将其与分层网络的节点跨层转发模型融合,在最小化数据通信开销的基础上,使用时间竞争的方式来缓解通信“热区”问题,以降低网络通信负载,平衡网络能耗,减少网络数据拥塞,提高数据包交付率并延长网络的使用寿命。实验结果表明,所提出的策略有效提高了海洋物联网感知终端的通信性能。Internet of Marine Things have emerged as a promising technology to explore and study the Marine environment and it also has wide application foreground.Due tothe special nature of the deployment environment,the perception layer network often has a“hot spot”phenomenon,which brings great challenges to optimize network bandwidth,energy,and communication reliability.In order to realize efficient and reliable communication across marine environment,we conducted a performance optimization study on the Internet of Marine Things.A simple opportunistic routing based on time-competition isproposed,which is integrated with the node's cross-layer forwarding model of a layered network.Based on minimizing data communication overhead,the time-competition strategy is used to alleviate the communication“hot spot”problem,balance network energy consumption,reduce network load and increase packet delivery ratio.The simulation results show that the proposed strategy can effectively improves the communication performance of Internet of Marine Things.

关 键 词：海洋物联网 热区问题 时间竞争模型 分层模型 性能优化 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]