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Transmission method for underwater acoustic sensor network with high packet delivery rate and energy efficiency

An underwater acoustic sensor and energy efficient technology, applied in network topology, advanced technology, energy consumption reduction, etc., to achieve the effect of improving delivery rate, prolonging network life, and increasing coverage

Active Publication Date: 2022-08-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, GEDAR requires nodes to maintain neighbor information, so it will generate a lot of additional control overhead

Method used

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  • Transmission method for underwater acoustic sensor network with high packet delivery rate and energy efficiency
  • Transmission method for underwater acoustic sensor network with high packet delivery rate and energy efficiency
  • Transmission method for underwater acoustic sensor network with high packet delivery rate and energy efficiency

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Experimental program
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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0062] The corresponding transmission mechanism of the present invention is used for data packet forwarding of sensor nodes, and includes three parts: 1) neighbor beacon interaction mechanism, which helps sensor nodes obtain the number of neighbors for routing protocol; 2) opportunistic routing mechanism, which is planned based on the number of neighbors Optimal data packet transmission path; 3) Conflict-tolerant MAC protocol, which arranges the corresponding priority and transmit power for different types of packets to reduce the collision of important packets;

[0063] 1. Neighbor beacon interaction mechanism;

[0064] All sensor nodes in the network establish the following three lists locally:

[0065] Q 0 : neighbor list; store the neighbor information within one hop of the sensor node, the list format is as follows:

[0066] Sending nod...

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Abstract

The invention provides an underwater acoustic sensor network transmission method with high data packet delivery rate and energy efficiency, including a neighbor beacon interaction mechanism to help sensor nodes obtain the number of neighbors for routing protocol; an opportunistic routing mechanism to plan based on the number of neighbors Optimal data packet transmission path; the conflict-tolerant MAC protocol arranges the corresponding priority and transmit power for different types of packets, reducing the collision of important packets. The invention uses extremely low control overhead to ensure the delivery rate under the high interruption rate underwater acoustic channel while suppressing the repeated transmission of data packets or entering the communication empty area; by increasing the power of the INFO to increase the coverage of the INFO, effectively solving the problem based on receiving To solve the hidden terminal problem faced by the opportunistic routing of the other party, the transmission priority of INFO is set higher than that of the data packet in the MAC layer, which reduces the conflict in the MAC layer, and effectively improves the energy utilization rate of the sensor node while ensuring the delivery rate of the data packet. Therefore, the network life can be effectively extended.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic sensor networks, in particular to the two fields of a MAC layer and a routing layer of an underwater acoustic sensor network, in particular to a transmission method suitable for an underwater acoustic sensor network. Background technique [0002] The noisy ocean background noise and the time-varying and space-varying characteristics of the underwater acoustic channel bring great challenges to the design of the underwater acoustic sensor network protocol. On the one hand, the energy of the underwater acoustic sensor node is limited but the transmission power is high, so in order to ensure the running time of the network, it is necessary to improve the packet delivery rate on the basis of suppressing the overhead and retransmission; on the other hand, the time-varying space of the underwater acoustic channel The variable characteristics cause the transmission link to be easily interrupte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/12H04W40/14H04W84/18
CPCH04W40/10H04W40/12H04W40/14H04W84/18Y02D30/70
Inventor 赵瑞琴李宁申晓红
Owner NORTHWESTERN POLYTECHNICAL UNIV
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