Two-stage isomerism clustering underwater wireless sensor network and routing method thereof

Abstract

The invention discloses a two-stage isomerism clustering underwater wireless sensor network and a routing method of the underwater wireless sensor network. The two-stage isomerism clustering underwater wireless sensor network comprises upper-layer sensor nodes, lower-layer sensor nodes, an offshore sink node and a base station on land. All the sensor nodes in a monitoring region of the underwater wireless sensor network form a two-stage isomerism clustering structure. The lower-layer sensor nodes form first-stage clusters and first-stage cluster head nodes. The upper-layer sensor nodes form second-stage clusters and a dynamic cluster head chain. Second-stage cluster head nodes transmit data to the offshore sink node through the dynamic cluster head chain. The offshore sink node is in direct wireless communication with the base station on land, and then the base station transmits the data to a remote control center. Through the method, average energy consumption of the nodes can be effectively reduced, the survival time of the network can be prolonged, and the underwater wireless sensor network is suitable for monitoring an underwater application environment with numerous nodes, high in expandability, more balanced in node energy consumption and suitable for large-scale application.

Description

technical field

[0001] The invention relates to a two-level heterogeneous clustering underwater wireless sensor network and a routing method thereof, belonging to the technical field of routing algorithms. Background technique

[0002] In recent years, with the deepening of human exploration, development and utilization of the ocean, the rapid development of underwater communication networks has been promoted. Considering the particularity of communication in the marine environment, other devices except large fixed platforms and backbone networks usually use wireless communication. At the same time, among the three energy transmission methods commonly used on land, geomagnetic waves, light waves, and sound waves, sound waves are the most suitable for long-distance transmission in water. Therefore, underwater acoustic wireless communication is usually used in the marine field. However, due to the narrow bandwidth, Doppler frequency shift, multipath effect, low transmission ...

Images