定向传输水声通信网络邻节点发现机制

第40卷第9期2019年9月

Vol.40<9

Sep;。】#哈尔滨工程大学学报

Journal of Harbin Engineering University

定向传输水声通信网络邻节点发现机制

杨健敏%'2'3,乔钢2,刘凇佐2,尹艳玲4

(1.中山大学海洋工程与技术学院，广东广州518000；2.哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001；3.南方海洋科学与工程广东省实验室(珠海)，广东珠海519000；4.东北农业大学电气与信息学院,黑龙江哈尔滨150001)

摘要:针对水声通信网络拓扑不稳定的问题，本文对其邻节点发现机制进行了研究。邻节点发现机制将网络新增节点的邻节点分为全向传输范围内邻节点与定向传输范围内邻节点2类，全向传输范围内邻节点按照邻节点发现机制选取部分节点作为邻节点代表，选出的邻节点代表根据自身情况向新增节点发送邻节点信息完成邻节点发现过程。本文通过理论计算与仿真分析验证所提邻节点发现机制性能，所得理论结果与仿真结果一致，仿真结果还表明所提邻节点发现机制中参与邻节点发现过程的节点数小于全向传输范围内节点数。

关键词：水声通信网络；邻节点发现；定向传输；邻节点代表；信息冗余；全向传输；网络拓扑；传输范围

DOI：10.11990/jheu.201803070

网络出版地址：htt p:///kcms/detail/23.1390;.20190816.1005.002.html

中图分类号:TP393文献标志码:A文章编号：1006-7043(2019)09-1549-06

Neighbor discovery mechanism for directional transmission

underwater acoustic communication networks

YANG Jianmin1，2,QIAO Gang1，2,LIU Songzuo1，2,YIN Yanling3

(1.School of Marine Engineering and Technology,Sun Yat-sen University,Guangzhou518000,China； 2.Col/ge of Underwater Acous/a Engineering,Harbin Engineering University,Harbin150001,China；3.Marine Science and Engineering Guangdong Laborato­ry(Zhuhai),Zhuhai519000,China；4.Colleee of Electrical and Information Engineering,Northeast Agricultural University,Harbin 150001，China)

Abstract:Consideeng the unstable topology of directional undewvatcs communication network/,thit papei studies iit neighbor discovei mechanism.In this mechanism,the node has two types of data transmission methods:directional and omnidirectional.The neighbor discavew mechanism divides the neighbor nodes of the newly added nodes inty two cateeo-W cs:the neighbor nodes i the omnidirectional transmission range and the neighbor nodes i the directional transmission range.The neighbor nodes in yie omnidirectional transmivion range select some nodes as yie neighbor nodes according W the neighbor node discovea mechanism.The selected neighbor node representative then sends the neighbor node infownas tion to the naWy added node according to its own situation to complete the neighbor node discovea process.In this pa-pea,the peWbwnanco of the proposed neighboring nodes is yerifOd by theoreticat calculation and simulation analysis.The theoreticat results are in good agreement with the simulation results.The simulation results alss show that the number of nodes paticipating i the neighbor discovery peocess is less than the omnidmectionat transmission sange.The number of nodes.The maig Onding of this paper have an impoWant referenco value and guidanco function to undewvates acoustic communication networks.

Keywords:undewvates acoustic communication networks；neighbor discoyay；directional transmission；representa­tive nodes；infownation adundancy；omni-direction!transmission；network Wpology；transmission rang

近年来,随着陆上资源开采几近枯竭，对海洋的开发利用越来越受关注。作为水下最有效的通信方

收稿日期：2018-03-20.网络出版日期：2019-08-16.基金项目：国家自然科学基金项目(61431004,61601136,61601137, 11774074).

作者简介:杨健敏，男，博士；

乔钢，男，教授,博士生导师；

刘淞佐，男，副教授，博士生导师.

通信作者：刘淞佐，E-mail:liusongzuo@. cn.式,学者对水声通信技术开展了广泛且深入的研究[1-6]&随着对海洋开发探索逐渐深入,点对点水声通信无法满足一些水下应用场景，需要水下各单位组网通信。水声通信网络中，邻节点发现机制扮演着非常重要的角色'7-9],该机制性能优劣会极大

影响网络整体工作效率。目前，水声通信网络邻节点发现机制相关研究非常少,但陆上无线网络关于邻节点发现的研究已经相对丰富且成熟'10_16]&