Multi-access method of directional underwater acoustic network
An underwater acoustic network and access method technology, applied in network topology, wireless communication, transmission system and other directions, can solve the problems of limiting network coverage, reducing network throughput and communication concealment, hiding terminals, etc.
Active Publication Date: 2021-12-24
SUN YAT SEN UNIV
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Problems solved by technology
The underwater acoustic network nodes in the existing multiple access method are equipped with omnidirectional transducers and adopt omnidirectional transmission technology to send and receive data, but this limits the coverage of the network and introduces interference between adjacent nodes, reducing the performance such as network throughput and communication concealment
However, the use of directional transmission technology in underwater acoustic networks will cause problems such as hidden terminals and "deaf" nodes.
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[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0045] An embodiment of the present invention provides a multiple access method for a directional underwater acoustic network, including:
[0046] Configure directional transducers and omnidirectional transducers for each node in the underwater acoustic network to determine the directional underwater acoustic network;
[0047] Perform neighbor node detection processing on the directional underwater acoustic network, and determine a neighbor node information table, wherein the neighbor node information table is used to represent node codes, node position information and dir...
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The invention discloses a multiple access method for a directional underwater acoustic network, which comprises the following steps of: configuring a directional transducer and an omnidirectional transducer for each node in the underwater acoustic network, and determining the directional underwater acoustic network; performing neighbor node detection processing on the directional underwater acoustic network, and determining a neighbor node information table; judging a channel state, and when the channel state is idle, acquiring position information of a destination node in the neighbor node information table; and according to the position information of the destination node, performing data communication with the destination node through the directional transducer, and meanwhile, sending a node busy signal through the omnidirectional transducer. According to the method, data communication is carried out through the directional transducer and the destination node, and the node busy signal is sent through the omnidirectional transducer, so that the throughput of the underwater acoustic network can be improved, and the method can be widely applied to the technical field of underwater acoustic networks.
Description
technical field [0001] The invention relates to the technical field of underwater acoustic networks, in particular to a multiple access method for directional underwater acoustic networks. Background technique [0002] The underwater acoustic network technology is the most important technology in the current ocean development, and has been successfully applied in the fields of ocean data sampling, earthquake monitoring, environmental monitoring, auxiliary navigation, and distributed tactical surveillance. An efficient multiple access method is very important to the underwater acoustic network, because it directly determines whether the nodes can effectively access the shared underwater acoustic channel. The underwater acoustic network nodes in the existing multiple access method are equipped with omnidirectional transducers and adopt omnidirectional transmission technology to send and receive data, but this limits the coverage of the network and introduces interference betwe...
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Login to View More IPC IPC(8): H04B13/02H04W74/08H04W84/18
CPCH04B13/02H04W74/085H04W84/18Y02D30/70
Inventor 杨健敏肖鹏徐灵基胡青马勇姜大鹏邓锐
Owner SUN YAT SEN UNIV