水下传感网络能量均衡与时延优化深度路由协议  

Energy Aware and Delay Optimized Pressure based Routing Protocol for Underwater Sensor Networks

作　　者：张美燕[1] 蔡文郁[2] 郑晓丹[1] 周丽萍[1] ZHANG Meiyan;CAI Wenyu;ZHENG Xiaodan;ZHOU Liping(School of Electrical Engineering,Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China;School of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]浙江水利水电学院电气工程系,杭州310018 [2]杭州电子科技大学电子信息学院,杭州310018

出　　处：《传感技术学报》2019年第8期1239-1244,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61801431,61871163);浙江省自然科学基金项目(LY18F030006);浙江省装备电子研究重点实验室开放基金项目;浙江省公益技术研究计划项目(GF20F010017)

摘　　要：水下传感器节点的精准位置信息很难获取,因此基于地理位置的水下传感器网络路由协议在水下三维空间中很难广泛应用。基于深度信息的路由协议DBR(Depth-Based Routing)只需要掌握节点深度信息就可以实现有效的数据转发,克服了需要精确地理位置的约束。但是传统DBR协议采用了洪泛传播机制,增加了水下传感器网络的冗余数据包,导致能量消耗过多且分布不均衡。从节点能量耗费均衡和数据包传输时延优化的角度,提出了基于水下传感器节点能量均衡与延时优化的DBR优化改进策略,根据传感器邻居节点的深度值以及剩余能量水平决定各个邻居节点的转发概率。仿真结果验证了改进后的深度路由协议在数据传输成功率和能耗均衡性能等方面均优于传统的DBR协议。Since accurate positions of underwater nodes are hard to achieve,location-based routing protocols for underwater sensor networks are difficult to be widely applied in underwater three-dimensional space.Depth-Based Routing(DBR)algorithm only needs nodes’depth information to realize effective packet transmission,so as to overcome the constraints of precise geographical location.However,the traditional DBR protocol uses flood propagation mechanism,which increases redundant packets in underwater sensor networks,resulting in excessive and unbalanced energy consumption.From the point of view of node energy consumption balance and packet transmission delay optimization,an improved DBR optimization strategy based on energy balance and delay optimization of underwater sensor nodes is proposed.Extensive simulation results demonstrate that the improved DBR protocol is superior to the traditional DBR protocol in terms of data transmission success rate and energy consumption balance performance.

关 键 词：水下传感器网络 深度路由协议 传输时延 网络能耗 

分 类 号：TN9[电子电信—信息与通信工程]