水下滑翔机组网的动态MAC机制

金志刚; 吴婷; 苏毅珊; 羊秋玲

doi:10.11999/JEIT170590

水下滑翔机组网的动态MAC机制

doi: 10.11999/JEIT170590

1.
(天津大学电气自动化与信息工程学院天津 300072) ②(海南大学信息学院海口 570208)

基金项目:

国家自然科学基金(61571318, 61701335)，青海省自然科学基金重点项目(2015-ZJ-904)，海南省重点研发计划项目(ZDYF 2016153)

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出版历程
- 收稿日期: 2017-06-20
- 修回日期: 2018-02-27
- 刊出日期: 2018-05-19

Dynamic MAC Mechanism for Underwater Glider Networks

1.
(School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China)
2.
(College of Information Science &

Funds:

The National Natural Science Foundation of China (61571318, 61701335), The Key Project of Qinghai Province on Science and Technology (2015-ZJ-904), The Key Project of Hainan Province on Science and Technology (ZDYF2016153)

摘要

摘要: 水下滑翔机的运动导致滑翔机位置和相对距离的变化，引起了滑翔机间的信号传输时间改变，进而导致水下滑翔机间通信可靠性的下降。传统水下媒体接入控制(MAC)协议面向静态拓扑网络，不适用于动态变化的网络拓扑。该文提出一种水下滑翔机组网的动态MAC机制。新机制利用水下滑翔机运动模型进行位置预测，根据预测结果和相邻滑翔机间的位置共享动态计算时隙长度，并进行分配和预约收发，水下滑翔机在收发过程中以团队协作方式避免冲突。实验结果表明，该机制的数据包投递率与运动预测MAC(P-MAC)和预约MAC(R-MAC)协议相比分别提高了12%和25%，更适用于由水下滑翔机组成的动态网络。
- 水下滑翔机组网 /
- 动态媒体接入控制机制 /
- 团队协作
Abstract: The movement of the underwater gliders leads to the change in the position and relative distance among the gliders, which causes a change in the propagation delay of packets between gliders, and then it leads to a decrease in the reliability of communication between underwater gliders. The traditional underwater Media Access Control (MAC) protocols are for static topology networks and do not apply to dynamically varying network topology. Thus, a new MAC mechanism for the underwater glider networks is proposed. It predicts location based on underwater glider motion model. It calculates time slots dynamically according to the predicted results and the shared position information of underwater gliders. Then, it allocates time slots and reserves to the send and the receive. Underwater gliders avoid collisions with teamwork in the process of sending and receiving. Simulation results show that in this mechanism, the packet received rate increases by 12% and 25% comparing to the Prediction based MAC (P-MAC) protocol and Reservation based MAC (R-MAC) protocol, respectively. The result indicates that the new mechanism is more suitable for the dynamic network composed of underwater gliders.
- Underwater glider networks /
- Dynamic Media Access Control (MAC) mechanism /
- Teamwork

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参考文献(15)

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