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Underwater data transmission method and device

A data transmission method and data technology, applied in the field of data transmission, can solve problems such as low data transmission efficiency

Active Publication Date: 2021-04-27
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an underwater data transmission method and device, which can solve the problem of using the MAC protocol for data transmission in the prior art, which is designed for a single-input and single-output system, resulting in an underwater data transmission system using the MIMO protocol. The problem of low data transmission efficiency

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  • Underwater data transmission method and device

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] It can be seen from the background technology that the existing MAC protocols Aloha, Slotted-FAMA, and DOTs used in underwater data transmission are all designed for single-input and single-output systems, and cannot be used in underwater data transmission systems using MIMO protocols. Taking advantage of the characteristics of the MIMO protocol results in low data transmission efficiency.

[0046] In view of this, the present invention pr...

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Abstract

The invention discloses an underwater data transmission method and device. During the period of time when a data receiving node receives a data signal, the combination of the maximum final value of the formula is calculated according to the channel capacity maximization formula, and the combination is fed back to k k data sending nodes, wherein, means that the data sending nodes send data signals, means that the data sending nodes do not send data signals; k data sending nodes send data signals to data receiving nodes according to the combination of . The invention solves the limitation of the underwater channel bandwidth through the MIMO channel model, so that the underwater sending / receiving nodes can simultaneously send / receive data in multiple channels, and optimize the sending scheduling of the data sending nodes through the formula, so as to maximize the channel capacity and ensure Efficiency of underwater data transmission.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to an underwater data transmission method and device. Background technique [0002] Multiple-Input Multiple-Output (MIMO) technology plays an important role in the field of wireless communication and is a key technology of high-speed communication. MIMO technology is widely used on land, but the application in marine environment is currently less. The complexity of the underwater environment makes data communication have problems such as low efficiency, channel bandwidth limitation, and large transmission delay, and only acoustic signal communication can be used, so the existing MIMO technology is difficult to use underwater. To use the advantages of MIMO technology to solve the challenges encountered in underwater communication, it is necessary to optimize the MAC protocol (Multiple Access Control Protocol). [0003] The existing MAC protocols Aloha, Slotted-FAMA, and D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B13/02H04B7/0413H04B7/0417H04L1/00
CPCH04B7/0413H04B7/0417H04B13/02H04L1/0007H04L1/0008H04L1/004
Inventor 王储张璇刘军崔军红关雯雪
Owner JILIN UNIV
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