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Biological-friendly cognitive underwater acoustic network communication method by efficiently utilizing spectrum resources

A spectrum resource and underwater acoustic network technology, applied in the field of underwater cognitive acoustic communication, can solve the problem of low spectrum utilization and achieve the effect of avoiding interference and efficient utilization

Inactive Publication Date: 2016-08-24
TIANJIN UNIV
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Problems solved by technology

[0004] In order to avoid the impact of sensor nodes on marine mammals and solve the problem of low spectrum utilization, the present invention proposes a biologically friendly cognitive underwater acoustic network communication method that efficiently utilizes spectrum resources

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  • Biological-friendly cognitive underwater acoustic network communication method by efficiently utilizing spectrum resources
  • Biological-friendly cognitive underwater acoustic network communication method by efficiently utilizing spectrum resources
  • Biological-friendly cognitive underwater acoustic network communication method by efficiently utilizing spectrum resources

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Embodiment Construction

[0014] In order to avoid the impact of sensor nodes on marine mammals and solve the problem of low spectrum utilization, the present invention proposes a biologically friendly cognitive underwater acoustic network communication method that efficiently utilizes spectrum resources. In this method, cognitive underwater acoustic technology is applied, marine mammals are used as primary users, and sensor nodes are used as secondary users, namely cognitive users. Using a centralized communication method, through spectrum sensing, cognitive users send channel occupancy information to the cognitive center, and the cognitive center allocates transmission power and transmission channels for cognitive users through channel allocation algorithms combined with power control algorithms. Realize efficient utilization of spectrum resources. Concrete implementation steps of the present invention are:

[0015] Step 1: The primary users in UCANs are marine mammals, and the sensor nodes are seco...

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Abstract

The invention relates to a biological-friendly cognitive underwater acoustic network communication method by efficiently utilizing spectrum resources. The biological-friendly cognitive underwater acoustic network communication method comprises the following steps that: a primary user in UCANs is a marine mammal; a sensor node is a secondary user; a frequency band occupied by sound production of the marine mammal is used as an authorized frequency band; the authorized frequency band is divided into two parts; for the frequency band having high use frequency, the marine mammal has the prior use right; after receiving communication agreement information of a cognitive centre, a cognitive user performs spectrum sensing of a channel; the sending power is necessary to be lower than a hearing threshold of the marine mammal; the cognitive user performs communication according to distribution information of the cognitive centre; and spectrum sensing is still necessary to carry out in a communication process. According to the biological-friendly cognitive underwater acoustic network communication method disclosed by the invention, interference of communication of the sensor node to communication between marine mammals can be avoided; simultaneously, underwater spectrum resources are reasonably utilized and distributed; and high-efficiency utilization of the spectrum resources is realized based on a cognitive technology.

Description

technical field [0001] The invention relates to the technical field of underwater cognitive acoustic communication, in particular to a biologically friendly cognitive underwater acoustic network communication method that efficiently utilizes spectrum resources. Background technique [0002] The sensor nodes in Underwater Acoustic Sensor Networks (UASNs) coexist with marine mammals in the underwater environment and use acoustic wave communication. However, most of the current research focuses on a single network scenario, and less consideration is given to UASNs. The impact of communication on the normal life of marine mammals. With the wide application of underwater acoustic sensor network technology, the impact of artificial acoustic signals on marine mammals is gradually increasing. In order to reduce the impact on them and realize biologically friendly underwater acoustic network communication, the design of UASNs faces severe challenges. [0003] Spectrum resources are ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04B13/02H04B11/00
CPCH04W16/14H04B11/00H04B13/02
Inventor 金志刚王健苏毅珊
Owner TIANJIN UNIV
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