Method for realizing self-adaptive routing protocol of mobile sparse underwater acoustic sensor network

Abstract

The invention discloses a method for realizing a self-adaptive routing protocol of a mobile sparse underwater acoustic sensor network. The method comprises the following steps: selecting a candidate set and an optimal relay node: determining the candidate relay set with qualification for forwarding data based on depth and sustainability, evaluating node quality by using a multi-metric decision theory, and dynamically determining the optimal relay point of each node in a distributed manner; dynamic updating: updating routing information in real time by combining factors such as paths, node degrees and residual energy so as to estimate uncertainty of delivery of the mobile sparse underwater acoustic sensor network; performing data forwarding: forwarding the data by the node with the highestpriority, monitoring and waiting by other nodes, and determining a strategy of whether to forward the data or not when the time expires until the data packet reaches a sea surface receiving point; theproblems of communication holes and low delivery rate caused by sparse node deployment and random movement and hotspots caused by excessive use of part of nodes in an underwater acoustic sensor network are solved, and the data packet delivery rate, link continuity and energy load balance are improved.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic sensor networks and underwater acoustic routing protocols, in particular to a method for implementing adaptive routing protocols for mobile sparse underwater acoustic sensor networks. Background technique [0002] The ocean is a treasure house of rich but underdeveloped natural resources. The further discovery, development and utilization of ocean resources is of great strategic significance to my country's development of ocean economy and building a maritime power. At present, satellites, ships, submarines and other technologies cannot complete important tasks such as marine resource surveying, marine environment monitoring, and sea area security guarantees in a long-term, short-distance, seamless, and real-time manner. These factors make the development of low-cost and high-reliability underwater wireless sensor network gradually become a new research topic. The underwater wireless ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the routing problems caused by sparse deployment and random movement of nodes, such as blank areas and low delivery rates, and provide a method for implementing adaptive routing protocols for mobile sparse underwater acoustic sensor networks. The method is based on the stability of nodes Calculate the reward function based on factors such as degree, link continuity, and node energy cost to select the forwarding point, which can realize the optimal relay point selection of the network path, reduce delay, improve link sustainability and network throughput

Images