一种水下接收端同步的并发媒体接入控制协议  

Concurrent medium access control based on underwater receiver synchronization

作　　者：王琦[1,2,3] 周锋 WANG Qi;ZHOU Feng(National Key Laboratory of Underwater Acoustic Technology,Harbin Engineering University,Harbin 150001,China;Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University),Harbin 150001,China;College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学水声技术全国重点实验室,黑龙江哈尔滨150001 [2]海洋信息获取与安全工业和信息化部重点实验室(哈尔滨工程大学),黑龙江哈尔滨150001 [3]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2023年第5期800-807,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(11974090);国家自然科学基金项目(山东联合基金)(U1806201);国防基础科研计划(JCKY2019604B001)。

摘　　要：针对水下声信号的低传播速度导致的时空不确定性问题,能够高效的利用水下声信道的长传播时延的信道预约技术,常被水下传感器网络的媒体接入控制协议的设计所采用,为了探索设计水下传感器网络的高性能媒体接入控制协议,以信道预约技术为基础,提出了一种新型的适用于移动水下传感器网络的,基于接收端同步的并发媒体接入控制协议,即CMACRS(concurrent medium access control based on receiver synchronization),新协议采用信道预约方法,实现了多个发送节点的并发传输。广泛的仿真结果显示,在吞吐量等性能方面,新协议优于非时隙级并发传输的水下媒体接入控制协议。To solve the problem of spatiotemporal uncertainty caused by the low propagation speed of underwater acoustic signals,channel reservation technology,which can efficiently utilize the long transmission delay of underwater acoustic channels,is often applied to the design of the media access control protocol of underwater sensor networks to explore a high-performance media access control protocol for designing underwater sensor networks.CMACRS,a novel protocol for concurrent medium access control based on receiver synchronization for mobile underwater sensor networks,is proposed on the basis of channel reservation technology.It uses channel reservation to achieve concurrent transmission among nodes.Extensive simulation results and performance comparison,such as throughput,show that the proposed method outperforms the unslotted concurrent transmission underwater medium access control protocol.

关 键 词：并发传输 接收同步 水下传感器网络 媒体接入控制协议 节点 吞吐量 时间不确定性 空间不确定性 

分 类 号：TN929.3[电子电信—通信与信息系统]