Realization method for underwater acoustic sensor network opportunistic routing protocol

Abstract

The invention discloses a realization method for an underwater acoustic sensor network opportunistic routing protocol. The method comprises the steps of S1, a sink node on the water periodically broadcasts query frames to underwater sensor nodes, and the underwater sensor nodes obtain the required number of hops for arriving at the sink node by forwarding the query frames; S2, a source node sends a data packet to the sink node through a broadcast channel; S3, after a neighbor node receives the data packet, whether the neighbor node belongs to a forwarding set or not is judged, if the neighbor node belongs to the forwarding set, the neighbor node broadcasts the data packet after waiting for a period of time, wherein the less the depth and the number of hops of the node are, the short the waiting time of the node is; and S4, the step S3 is repeated until the sink node receives the data packet. According to the method, only the node depth and the required number of the hops from the nodes to the sink node are taken as unique signaling overheads, the network throughput is improved, the routing problem of a blank area and path deviation is solved, and the feature that the delay of the underwater acoustic channel is high is adapted well.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic sensor network and underwater acoustic routing protocol, in particular to a method for realizing the opportunistic routing protocol of the underwater acoustic sensor network. Background technique [0002] Ocean engineering has become a hot spot in today's science and technology research. Underwater acoustic communication is one of the key technologies in the development of marine resources and marine military. Research and development of underwater acoustic communication system has very important scientific significance and application value. With the development of wireless networking technology, underwater acoustic sensor network has gradually become the supporting technology of underwater acoustic communication. In recent years, researchers have carried out research on underwater acoustic sensor networks in many aspects such as underwater acoustic channels, underwater acoustic modem...

AI Technical Summary

Problems solved by technology

Traditional routing establishes and maintains a routing table, or finds the path from the sending node to the destination node through the route discovery process before data is sent. However, these two data forwarding methods require the process of establishing and maintaining routes. This process has little impact on terrestrial radio communication, but based on the above-mentioned challenges of underwater acoustic communication, this process will occupy a large amount of channel resources in the underwater acoustic sensor network and is not suitable for underwater acoustic communication

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