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An underwater acoustic sensor network media access control method for underwater target detection

An underwater acoustic sensing, target-oriented technology, applied in the field of communication, can solve many problems, and achieve the effect of reducing the total time, improving the accuracy, and avoiding transmission conflicts.

Active Publication Date: 2018-12-11
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The existing underwater target detection mainly focuses on the research of target detection methods, and there is not much work on the underwater acoustic sensor network data packet transmission method and protocol supporting underwater target detection

Method used

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  • An underwater acoustic sensor network media access control method for underwater target detection
  • An underwater acoustic sensor network media access control method for underwater target detection
  • An underwater acoustic sensor network media access control method for underwater target detection

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Embodiment Construction

[0037] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[0038] Specifically through the following steps:

[0039] Step (1) Fusion center selection

[0040] The node that detects the target first randomly selects a moment to broadcast the COMPETE packet, and the COMPETE packet contains the intensity of the radiation noise of the received target. Nodes receive COMPETE packets from other nodes. If the target radiation noise intensity of other nodes is greater, that is, closer to the target, the node will withdraw from the fusion center competition. In order to avoid the situation that multiple nodes do not quit the fusion center competition due to the conflict of COMPETE packet transmission, the nodes that do not quit randomly choose a moment to broadcast the COMPETE packet again. The node with the largest target radiation noise intensity becomes the new fusion center.

[0041] Step (2) Fusion Cen...

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Abstract

The invention relates to an underwater acoustic sensor network media access control method oriented to underwater target detection. Existing methods are not suitable for underwater acoustic sensor networks with target detection. The invention firstly broadcasts the sequential packet to the node which collects the target state information by the fusion center. After receiving the sequential packet,the sensing node sends the data packet to the fusion center according to the data packet scheduling table. The fusion center collects the data packets and sends them to the sink node. After receivingthe RTS packet, the node sends the RTS packet to the next hop node for channel reservation after the CTS packet is fed back to the upper hop node and the waiting time is reached. After receiving theCTS packet, the node sends the data packet to the next hop node after the waiting time. After receiving the CTS packet of the next hop node, the node forwards the DATA packet to the next hop node after the waiting time. The method of the invention reduces the data packet transmission collision probability, reduces the data packet end-to-end transmission delay, and improves the target tracking accuracy.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to the technical field of media access control (MAC) of an underwater acoustic sensor network, and in particular relates to an underwater acoustic sensor network media access control method for underwater target detection. Background technique [0002] In recent years, my country has paid more and more attention to the detection and development of the ocean, and the related technologies of underwater acoustic sensor networks have also developed rapidly, and are widely used in ocean exploration, such as marine environment monitoring, underwater target detection and disaster warning. Underwater target detection is one of the important applications of underwater acoustic sensor networks. [0003] In underwater target detection, the node only sends information after detecting the target and collecting the target information, and needs to send the data packet containing the target ...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W74/04H04W84/18
CPCH04W24/04H04W74/04H04W84/18
Inventor 陈惠芳谢磊邓敏
Owner ZHEJIANG UNIV
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