基于优化模型的协作通信的中继节点选择算法  

Optimization Model-Based Selection of Relay Nodes to Cooperative Communication in WSNs

作　　者：蔺莉[1] 宋三华[1] LIN Li;SONG Sanhua(College of Information Engineering,HuangHuai University,Zhumadian He ' nan 463000,China)

机构地区：[1]黄淮学院信息工程学院,河南驻马店463000

出　　处：《传感技术学报》2019年第1期139-143,共5页Chinese Journal of Sensors and Actuators

基　　金：河南省科技厅基金项目(162102110119);2018年度河南省重大科技专项基金项目(182102210100)

摘　　要：协作通信是提高无线传感网络WSNs(Wireless Sensor Networks)数据传输可靠性的有效技术,而协作通信的关键在于中继节点的选择。为此,提出基于优化模型的协作通信的中继节点选择OM-SRN(Optimization Model-based Selection of Relay Nodes)算法。OM-SRN算法将中继节点的选择过程看成基于增益函数的优化问题,再利用混合整数线性规划求解。OM-SRN算法依据候选节点的邻居节点数、节点剩余能量和链路质量这三个参数选择中继节点。最后,依据OMNe T++仿真软件分析OM-SRN算法。仿真数据表明,与同类协作算法相比,提出的OM-SRN算法在消息传输成功率和冗余消息率方面的性能得到提高。Cooperative communication approaches are being increasingly used to improve the reliability of Wireless Sensor Networks(WSNs)communication,allowing better spatial and temporal diversity.For the success of these techniques,a proper selection of the relay nodes is a crucial task.Therefore,Optimization model-based Selection of Relay Node(OM-SRN)is proposed in this paper.In OM-SRN,the selection of relay nodes is treated as an optimization problem using a benefit function,then the optimization problem is a Mixed Integer Linear Programming(MILP).Additionally,OM-SRN also considers a set of additional parameters for the selection of relay nodes,namely:the number of neighbours of the candidate node,its remaining battery energy,the quality of the link.A simulation assessment of the Smart technique was performed using the simulation tool OMNe T++.The performed simulation resultshows that the OM-SRN algorithm outperforms other state-of-the-art techniques by means of the increase of the success rate and the lower percentage of useless retransmission message.

关 键 词：无线传感网络 协作通信 中继节点 优化 混合整数线性规划 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]