Resource Allocation Method for Cognitive Wireless Networks Based on Signal Modulation Recognition

A cognitive wireless network and signal modulation technology, which is applied in the field of cognitive wireless network resource allocation based on signal modulation identification, can solve the problem of insufficient consideration of the number of signal modulation types, insufficient consideration of the needs of user signal modulation methods, and resources Insufficient allocation methods and other issues, to achieve the effect of improving flexibility and effectiveness, improving fineness and universality, and overcoming the limitation of applicable scenarios

Active Publication Date: 2019-04-19
XIDIAN UNIV
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Problems solved by technology

The disadvantage of this method is that although this method proposes a modulation signal classification method in cognitive networks, it does not fully consider the number of signal modulation types in actual communication scenarios.
The shortcomings of this method are: although this method proposes a resource allocation scheme in cognitive networks that considers different needs of cognitive users, it only proposes the user's QoS requirements, and does not fully consider the user signal to treat the access channel. The requirements of the modulation method, the resource allocation method is not considered perfect

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  • Resource Allocation Method for Cognitive Wireless Networks Based on Signal Modulation Recognition
  • Resource Allocation Method for Cognitive Wireless Networks Based on Signal Modulation Recognition
  • Resource Allocation Method for Cognitive Wireless Networks Based on Signal Modulation Recognition

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Embodiment Construction

[0033] The invention will be further described below in conjunction with the accompanying drawings.

[0034] Refer to attached figure 1 , the application scenario of the present invention is a cognitive wireless network, in which a primary user PU and N cognitive nodes CR are set. 1 to CR N , a relay node and a base station BS. N represents the number of cognitive nodes in the cognitive wireless network. Among them, the N cognitive nodes respectively receive the signals sent by the primary user PU in one direction, the relay node receives the information sent by the N cognitive nodes in one direction, and the base station receives the information of the relay node and directly controls the N cognitive nodes.

[0035] Attached below figure 2 , to further describe the specific steps of the present invention.

[0036] Step 1, detect the frequency spectrum.

[0037] Each cognitive node in the cognitive wireless network respectively receives the signal sent by the primary us...

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Abstract

The invention discloses a cognitive wireless network resource allocation method based on signal modulation identification, which mainly solves the low accuracy and applicable scenarios of the classification methods for inter-class and intra-class classification methods of primary user signal modulation modes of cognitive wireless networks in the prior art The shortcoming of being too limited overcomes the shortcoming that the existing spectrum allocation technology pays more attention to the demand of the service quality of the cognitive node, which causes insufficient consideration of the demand of the cognitive node. The main steps of the present invention are: 1. Detecting the spectrum; 2. Setting the detection confidence threshold; 3. Judging whether the primary user channel state is idle; 4. Obtaining modulation information; 5. Reporting information; 6. Spectrum fusion; 7. Spectrum resource allocation. The present invention can dynamically adjust the corresponding parameters of the trust system according to the requirements of the communication environment, especially the modulation information parameters, thereby making the allocation and use of spectrum resources of the cognitive wireless network more flexible and efficient.

Description

technical field [0001] The present invention belongs to the technical field of communication, and further relates to a cognitive wireless network resource allocation method based on signal modulation identification in the technical field of cognitive wireless network. The present invention can dynamically adjust the corresponding parameters of the trust system, especially the modulation parameters according to the requirements of the communication environment, thereby making the allocation and use of spectrum resources of the cognitive wireless network more flexible and efficient. Background technique [0002] Cognitive Radio (CR for short) is a promising technology to solve the increasingly scarce spectrum problem. Automatic identification of digital modulation mode is an intermediate step in signal reception and demodulation. Cognitive wireless network system plays a leading role. In non-cooperative and dynamic communication environment, it plays an important role in preve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/00H04W16/10H04W72/04
CPCH04L27/0012H04W16/10H04W72/0453H04W72/53
Inventor 李文刚汤林静陈睿刘龙伟唐李梅罗文翠
Owner XIDIAN UNIV
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