An underwater sensor network architecture and its implementation method

Abstract

The invention relates to an underwater sensor network architecture and an implementation method thereof. The implementation method of the underwater sensor network architecture comprises the followingsteps: when a node has data to send, the data is first delivered to the transport layer through the application layer of the protocol stack; the protocol of the transport layer performs end to end reliability transmission processing on the data; then the data is delivered down to the network layer; the protocol of the network layer encapsulates a destination address to the data and gives appropriate routing information; then the data is continued to deliver down to the MAC layer; the protocol of the MAC layer encapsulates the next hop address to the data and gives a method to send the data tothe next node; and finally, the data is delivered to the physical layer, modulated by the physical layer and sent out in the form of a sound signal. The implementation method of the underwater sensornetwork architecture provides both a pure layered architecture and a cross layer design, and the cross layer design is crucial to the sensor network, because the performance of the system is affectedby each layer, and the cross layer design can make each layer cooperate with each other, therefore, the performance of the system is improved.

Description

technical field [0001] The invention relates to the technical field of underwater sensor networks, in particular to an underwater sensor network architecture and an implementation method thereof. Background technique [0002] One of the differences between an underwater sensor network (UWSN) and a terrestrial sensor network is the communication method. Acoustic communication is considered the most practical method for UWSN. Underwater acoustic channels are usually characterized by high attenuation, long propagation delay, high bit error rate and low available bandwidth. Due to these characteristics, some widely accepted assumptions in terrestrial sensor networks are not applicable in UWSN, and existing terrestrial network protocols cannot be directly adopted. Over the past few years, there has been a growing interest in UWSNs from academia and industry. Many applications, network protocols, and devices have emerged. However, most of the above designs are based on specifi...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the existing underwater sensor network architecture lacks compatibility and cannot be expanded according to customer needs

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