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A Low-complexity Underwater Acoustic Communication Power Setting Method Combining Rules and Cases

A power setting and underwater acoustic communication technology, which is applied in sustainable communication technology, ultrasonic/sonic/infrasonic transmission system, advanced technology, etc., can solve the problems of complex, inefficient and poor applicability

Active Publication Date: 2022-02-11
ZHEJIANG UNIV
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Problems solved by technology

[0005] Aiming at the problem that the existing underwater acoustic communication power control method has poor applicability and relatively complex and inefficient implementation, the present invention proposes a low-complexity adaptive power setting method for underwater acoustic communication, which provides a rule A low-complexity underwater acoustic communication power setting method combined with a case study

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  • A Low-complexity Underwater Acoustic Communication Power Setting Method Combining Rules and Cases
  • A Low-complexity Underwater Acoustic Communication Power Setting Method Combining Rules and Cases
  • A Low-complexity Underwater Acoustic Communication Power Setting Method Combining Rules and Cases

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Embodiment Construction

[0069] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples, the specific process of the method is as follows figure 1 shown.

[0070] There are underwater acoustic network communication source node A and destination node B. The physical layer of the nodes uses 4FSK modulation and convolutional codes for channel coding. The packet format used for inter-node communication is as follows: figure 2 As shown in , the information part is used to convey feedback information such as channel estimation.

[0071] Step (1) run initialization:

[0072] (1-1) The source node A establishes a rule base, and the rule base sets the theoretical method of sending power in the form of a cascade function:

[0073] The first function is the mapping function of the bit error rate curve, which is implemented by a look-up table, representing a one-to-one mapping relationship, the input is the bit error rate BER, and...

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Abstract

The invention discloses a low-complexity underwater acoustic communication power setting method combining rules and cases. The method of the invention combines rules with cases. When a new transmission power needs to be set, case matching is performed first, and different processing is performed according to the matching results, including setting using rules; including setting directly using historical case results; including Carry out case adjustment, that is, use the rule-based setting method to adjust the power decision based on the best matching case combined with the historical information of the case, take the adjustment result as the final power control result, and then feed back the decision evaluation back to the case database to save the case Update with learning parameters. On the basis of low implementation complexity, the method of the invention utilizes the reference function of historical information to ensure high decision-making accuracy under the adjustment of rule constraints, realizes efficient power control, and is suitable for underwater acoustic communication.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to the technical field of underwater acoustic communication (Underwater acoustic communication), in particular to a low-complexity underwater acoustic communication power setting method combining rules and cases. Background technique [0002] With the development of science and technology, the ocean plays an increasingly important role in the development of human beings. The utilization and development of marine resources, marine environment monitoring, and marine national defense security all require underwater information transmission. Effective and feasible means are also increasingly important. However, underwater acoustic channels often have the characteristics of severe multipath, narrow available bandwidth, Doppler effect, and time-space changes, which bring challenges to the design of reliable underwater acoustic communication. Adaptive modulation and coding technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B11/00H04B13/02
CPCH04B11/00H04B13/02Y02D30/70
Inventor 陈惠芳吕传磊谢磊
Owner ZHEJIANG UNIV
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