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Energy consumption balanced underwater acoustic network route establishing method

A technology of underwater acoustic network and energy consumption balance, applied in data exchange network, digital transmission system, electrical components, etc., can solve the problems of high node energy consumption and reduce network life cycle.

Inactive Publication Date: 2017-07-28
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since most data packets are propagated along the optimal path, the energy consumption of nodes on this path will be higher than that of nodes on the non-optimal path, causing premature death of nodes on the optimal path and reducing the network life cycle

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  • Energy consumption balanced underwater acoustic network route establishing method
  • Energy consumption balanced underwater acoustic network route establishing method
  • Energy consumption balanced underwater acoustic network route establishing method

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Embodiment Construction

[0028] The invention proposes a method for establishing an underwater acoustic network routing with balanced energy consumption. Nodes are deployed in layers from the water surface to the underwater, and the underwater source node generates a data packet and sends it to the sink node on the water surface. The sensor node can obtain the depth information of itself by being equipped with a pressure sensor. After the source node generates the data packet, it first sends a request to the sink node by broadcasting, and collects node status information at the same time. In this process, in order to control the flooding area, only nodes whose depth is smaller than the previous hop participate in the broadcast. After the Sink node receives the request, if it agrees to establish communication, it extracts the node information from the data packet for path planning, and returns the request confirmation to the source node along the planned path. After receiving the request acknowledgmen...

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Abstract

The invention relates to an energy consumption balanced underwater acoustic network route establishing method. Each node is equipped with a pressure sensor, and depth information of each node can be acquired; a current return function and a future return function are defined for communication of the nodes; in the return functions, an end-to-end delay and node residual energy are simultaneously considered; then two return functions constitute an action utility function; by solving a maximum utility value, a next hop of node is determined; a communication process is divided into a forward transmission stage and a return stage; the forward transmission stage is used for sending a communication request to a sink node by a source node and collecting information of other nodes between the sink node and the source node; and the Sink node utilizes the information to carry out path planning, then a planned path and communication request confirmation are sent to the source node by the return stage, and then data packet transmission is started.

Description

technical field [0001] The invention relates to a routing protocol design method in an underwater sensor network. Background technique [0002] In recent years, Underwater Acoustic Sensor Networks (UASNs) have been widely used in commercial exploration, aquatic biology research, and oceanographic data collection. Wireless sensor network technology has been greatly developed on land. However, due to the unique characteristics of the marine environment, it is difficult to apply the communication technology of land wireless sensor network to UASNs. Example: On land a wireless sensor network uses radio communication with a propagation speed of up to 3×10 8 m / s. However, due to the rich electrolytes in seawater, it is difficult for electromagnetic waves to propagate effectively in water. So far, the only effective transmission medium is sound waves, whose propagation speed is much slower than electromagnetic waves. Therefore, underwater acoustic communication has the character...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/727H04L12/721H04W40/10H04L45/121
CPCH04L45/121H04L45/124H04W40/10
Inventor 马莹莹罗咏梅金志刚
Owner TIANJIN UNIV
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