速率自适应的海面物联网跨层机会传输协议  

Rate-adaptive cross-layer opportunistic transmission for ocean IoT

作　　者：赵瑞琴[1,2] 张东健 全豪 刘创源 王海燕 ZHAO Rui-qin;ZHANG Dong-jian;QUAN Hao;LIU Chuang-yuan;WANG Hai-yan(School of Marine Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China;Key Laboratory of Ocean Acoustics and Sensing(Northwestern Polytechnical University),Ministry of Industry and Information Technology,Xi’an 710072,China;National College of Elite Engineer,Northwestern Polytechnical University,Xi’an 710072,China;School of Electronic Information and Artificial Intelligence,Shaanxi University of Science and Technology,Xi’an 710071,China)

机构地区：[1]西北工业大学航海学院,西安710072 [2]海洋声学信息感知工业和信息化部重点实验室(西北工业大学),西安710072 [3]西北工业大学国家卓越工程师学院,西安710072 [4]陕西科技大学电子信息与人工智能学院,西安710071

出　　处：《控制与决策》2025年第1期180-186,共7页Control and Decision

基　　金：国家自然科学基金项目(62071385,62031021)。

摘　　要：海面物联网在海洋观测、海域监测等应用中发挥着重要作用.复杂动态海洋环境造成海洋网络链路状态、链路质量的时变特征,且其给海面物联网带来了严峻挑战,为此,将物理层自适应数据速率、媒体访问控制(MAC)层载波侦听多址接入与网络层机会路由联合进行跨层设计,提出速率自适应海面物联网跨层传输协议,通过3次握手机制机会性选择最佳转发结点并基于动态信噪比实现传输速率实时自适应调整,旨在提高动态复杂海洋环境下海面物联网的稳健性.陆地和湖上试验结果表明,所提协议在数据包交付率、能耗与时延方面性能优异,可为复杂动态海洋环境中海面物联网数据的高效传输提供重要的技术途径.The ocean Internet of Things(IoT)has played a crucial role in ocean observation and sea area monitoring applications.The complex and dynamic marine environment leads to time-varying characteristics of ocean network links,posing significant challenges to the ocean IoT.Therefore,a rate-adaptive cross-layer opportunistic transmission(RA-CLOT)protocol is proposed,which integrates physical layer adaptive data rate,MAC layer carrier sense multiple access,and network layer opportunistic routing together.This protocol opportunistically selects the best forwarders through a three-way handshake mechanism,and adjusts the transmission rate based on the link dynamic signal-to-noise ratio,aiming to enhance the robustness of the ocean IoT in the complex and dynamic marine environment.Experimental results from land and lake trials demonstrate that the proposed protocol achieves a high packet delivery ratio with reduced energy consumption and latency under a complex and dynamic network environment.

关 键 词：海洋 物联网 机会路由 网络 速率自适应 LoRa 海洋链路 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]