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Underwater acoustic sensor network transmission method with high data packet delivery rate and energy effectiveness

An underwater acoustic sensor, energy efficiency technology, applied in network topology, advanced technology, energy consumption reduction, etc.

Active Publication Date: 2020-09-08
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • 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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  • Underwater acoustic sensor network transmission method with high data packet delivery rate and energy effectiveness
  • Underwater acoustic sensor network transmission method with high data packet delivery rate and energy effectiveness
  • Underwater acoustic sensor network transmission method with high data packet delivery rate and energy effectiveness

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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 transmission mechanism corresponding to 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, and is used in routing protocols; 2) opportunistic routing mechanism, based on neighbor number planning Optimal data packet transmission path; 3) Conflict-tolerant MAC protocol, which arranges corresponding priorities and transmit power for different types of packets, reducing collisions with 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 node ID ...

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Abstract

The invention provides an underwater acoustic sensor network transmission method with high data packet delivery rate and energy effectiveness, which comprises a neighbor beacon interaction mechanism for helping a sensor node to obtain the number of neighbors for a routing protocol; an opportunistic routing mechanism plans an optimal data packet transmission path based on the number of neighbors; aconflict-tolerant MAC protocol is provided, corresponding priorities and transmitting powers are arranged for different types of packets, so that conflicts with important packets are reduced. According to the method, extremely low control overhead is used, the delivery rate is ensured under the underwater acoustic channel with a high interruption rate, and meanwhile, data packets are prevented from being repeatedly transmitted or entering a communication null area; the coverage area of the INFO is increased by increasing the power of the INFO; the problem of hidden terminals faced by opportunistic routing based on a receiver is effectively solved, the transmitting priority of INFO is set to be higher than that of data packets on an MAC layer, conflicts of the MAC layer are reduced, the energy utilization rate of sensor nodes is effectively increased while the delivery rate of the data packets is guaranteed, and therefore the service life of a network can be effectively prolonged.

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, and specifically a transmission method suitable for an underwater acoustic sensor network. Background technique [0002] The noisy background noise of the ocean 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 underwater acoustic sensor nodes is limited but the transmission power is high. Therefore, in order to ensure the long running time of the network, it is necessary to increase the delivery rate of data packets on the basis of suppressing overhead and retransmission; Due to the variable characteristics, the transmission link is easy to be interrupted randomly, and then the communication space is gen...

Claims

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Application Information

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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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