Collision Classification MAC Protocol for Underwater Acoustic Communication Networks Using Directional Antennas  

作　　者：Jianmin Yang Gang Qiao Qing Hu Lingji Xu Peng Xiao Jiarong Zhang 

机构地区：[1]School of Ocean Engineering and Technology,Sun Yat-sen University,Guangzhou 518000,China [2]Acoustic Science and Technology Laboratory,Harbin Engineer University,Harbin 150001,China [3]Key Laboratory of Marine Information Acquisition and Security,Harbin Engineering University,Ministry of Industry and Information Technology,Harbin 150001,China [4]College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China [5]Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519000,China [6]Systems Engineering Research Institute,Beijing 100094,China

出　　处：《China Communications》2022年第5期241-252,共12页中国通信（英文版）

基　　金：This work was supported by the National Key Research and Development Program of China(No.2018YFC0308500);National Natural Science Foundation of China(Nos.61901273,11774074,61771152,U1806201 and 11974090);Natural Science Foundation of Heilongjiang Province of China(No.YQ2019F002);Acoustic Science and Technology Laboratory,Science and Technology on Underwater Information and Control Laboratory,and by the Young Elite Scientists Sponsorship by CAST.

摘　　要：Traditional underwater acoustic communication networks(UACNs)generally use omnidirectional transmission technology that causes a large number of data-packet collisions,thus resulting in low network throughput and high end-to-end delays.Compared with omnidirectional transmission technology,directional technology only sends and receives data packets in a specified direction.This can significantly reduce the probability of collisions and improve network performance.However,it also causes a deafness problem,which occurs when the sending node sends a data packet to the receiving node but the receiving node is unable to reply to the sender,because its antenna beam is closed.To resolve this issue,this study proposes a collision classification media access control(CC-MAC)protocol for UACNs.With this protocol,the underwater acoustic channel is divided into two subchannels,and the nodes transmit corresponding data types on them.The sending node can estimate the current status of the receiving node(i.e.,no collision,normal collision,deafness)according to the type of the data packet received and the sub-channel it arrived on,and it can choose correct options to improve network efficiency.Finally,we verify the performance of CC-MAC via simulations,showing that the protocol achieved higher network throughput and lower end-toend delays.

关 键 词：collision classification directional antennas dual channel media access control(MAC) underwater acoustic communication networks(UACNs) 

分 类 号：TN929.3[电子电信—通信与信息系统]