定向接收低冲突率水声网络媒体接入控制协议

郑茂醇; 韩笑; 葛威; 孙瑶; 殷敬伟

doi:10.11999/JEIT230153

定向接收低冲突率水声网络媒体接入控制协议

doi: 10.11999/JEIT230153

1.
哈尔滨工程大学水声技术全国重点实验室哈尔滨 150001
2.
海洋信息获取与安全工信部重点实验室(哈尔滨工程大学) 工业和信息化部哈尔滨 150001
3.
哈尔滨工程大学水声工程学院哈尔滨 150001

基金项目: 国家杰出青年科学基金(62125104)

详细信息

作者简介:
郑茂醇：男，博士，研究方向为水声网络及软件仿真

韩笑：男，副教授，研究方向为水声通信及信号处理

葛威：男，讲师，研究方向为水声通信及信号处理

孙瑶：女，博士，研究方向为水声网络及软件仿真

殷敬伟：男，教授，研究方向为水声通信与探测、信号处理及极地声学等

通讯作者:
韩笑　hanxiao1322@hrbeu.edu.cn

中图分类号: TN929.3
计量
- 文章访问数: 112
- HTML全文浏览量: 30
- PDF下载量: 27
- 被引次数: 0
出版历程
- 收稿日期: 2023-03-13
- 修回日期: 2024-01-17
- 网络出版日期: 2024-01-29
- 刊出日期: 2024-03-27

Directional Reception Low Collision Probability MAC Protocol for Underwater Acoustic Networks

1.
Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
2.
Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China
3.
College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China

Funds: The National Science Foundation for Distinguished Young Scholars (62125104)

摘要

摘要: 在全向水声通信网络场景中，较大的传播时延和较高的数据包碰撞率严重影响了网络性能。相比全向接收技术，声矢量传感器的声压和振速通过线性加权组合可以形成单边指向性，实现定向接收某个方向上的信号，进而提高网络的空间复用率。该文首先分析了声矢量传感器定向接收模式下的网络中断概率，验证定向接收技术网络应用的可行性。然后，提出了定向接收低冲突概率媒体接入控制协议(DRLCP-MAC)。该协议利用指向性接收波束握手机制建立稳定的数据传输链路，通过状态转移策略构建多对并行通信链路，缩小虚拟载波监听范围，提高网络的空间复用度。仿真结果表明，与水下冲突避免多址接入协议(MACA-U)和时隙地面多址接入协议(Slotted-FAMA)相比，DRLCP-MAC协议使信道接入成本降低了约50%和60%，网络吞吐量提升了约60%和400%，端到端时延降低了约50%和85%。
- 水声网络 /
- 定向收信 /
- 矢量传感器 /
- 媒体接入控制协议
Abstract: In the omni-directional underwater acoustic communication network, large propagation delay and high packet collision rate seriously affect the network performance. Compared with the omni-directional reception, the sound pressure and vibration velocity of the acoustic vector sensor can form a unilateral directivity through the linear weighted combination, so as to realize the directional reception of signals in a certain direction, and then effectively improve the network spatial multiplexing rate. The network outage probability in the directional reception mode of single vector sensor is analyzed, and its feasibility is also verified. Then, a Directional Reception Low Collision Probability Media Access Control (DRLCP-MAC) protocol is proposed, which uses a directional reception beam handshake mechanism to establish a stable data transmission link, and constructs multiple pairs of parallel communication links through state transition strategy, so as to reduce virtual carrier monitoring range and improve spatial reuse of the network. Simulation results show that compared with Multiple Access Collision Avoidance for Underwater (MACA-U) protocol and Slotted Floor Acquisition Multiple Access (Slotted-FAMA) protocol, the channel access cost of DRLCP-MAC is reduced by 50% and 60%, the network throughput is increased by about 60% and 400%, and the end-to-end delay is reduced by about 50% and 85%.
- Underwater acoustic networks /
- Directional reception /
- Vector sensor /
- Media access protocol

HTML全文

图 1 基于单矢量水听器的定向接收技术

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图 2 网络中断概率

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图 3 RTS/CTS握手机制示意图

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图 4 不同发包率下的信道接入成本对比

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图 5 不同发包率下的吞吐量对比

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图 6 不同发包率下的端到端时延对比

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