基于重传的协作多跳水声网络能耗优化研究  

Energy Consumption Optimization of Cooperative Multi-Hop Underwater Acoustic Network Based on Retransmission

作　　者：陈鹏[1,2] 武岩波 朱敏[1,3,4] CHEN Peng;WU Yanbo;ZHU Min(Ocean Acoustic Technology Center,Institute of Acoustics,Chinese Academy of Sciences,Beijing,100190,China;University of Chinese Academy of Sciences,Beijing,100049,China;State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences,Beijing,100190,China;Beijing Engineering Technology Research Center of Ocean Acoustic Equipment,Beijing,100190,China)

机构地区：[1]中国科学院声学研究所,海洋声学技术中心,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院声学研究所,声场声信息国家重点实验室,北京100190 [4]北京市海洋声学装备工程技术研究中心,北京100190

出　　处：《网络新媒体技术》2021年第5期9-16,共8页Network New Media Technology

基　　金：国家自然科学基金项目(编号:61971472、61471351);中国科学院战略性先导科技专项(A类)项目(编号:XDA22030101);国家重点研发计划项目(编号:2016YFC0300300)。

摘　　要：针对水声网络的低能耗远距离传输问题,建立了具有反馈重传机制的协作多跳网络能耗模型,基于水声传播衰减和噪声特性通过曲线拟合的方式获得了最优衰减噪声因子的近似函数关系式,以简化能耗模型。仿真分析给出端到端总误包率要求下协作多跳水声网络每比特传输能耗与协作节点数、跳距、最大传输次数之间的关系。结果表明,多跳可以节省大量能耗。允许一次重传就足以对网络全局最小能耗带来较大节能增益,并有效减少最优协作节点数及提高最优跳距,从而能降低网络能耗对网络节点密度的要求,特别适合水声传感器网络应用。Aiming at the problem of long-distance transmission with low energy consumption in the underwater acoustic network,an energy consumption model of cooperative multi-hop network based on feedback retransmission mechanism is established.Based on the model of underwater acoustic propagation attenuation and noise,the approximate function expression of optimal attenuation noise factor is obtained using curve fitting to simplify the energy consumption model.Given the requirement of end-to-end total packet error rate,simulation analysis gives the relationship between energy consumption per bit and the number of cooperative nodes,hop distance and maximum transmission times.The results show that multi-hop can save a lot of energy.Allowing one retransmission is enough to bring a big energy saving gain to the global energy consumption of the network,and reduce the number of optimal cooperative nodes effectively and increase the optimal hop distance,thus reducing the requirements of network energy consumption on node density,which is especially suitable for underwater acoustic sensor network applications.

关 键 词：协作多跳 水声传感器网路 网络能耗 反馈重传 

分 类 号：TN929.3[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]