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Cognitive radio power control method based on quantum monkey flock search mechanism

A cognitive radio and power control technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of spectrum resource shortage and underutilization of spectrum resources, etc.

Active Publication Date: 2018-03-30
HARBIN ENG UNIV
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Problems solved by technology

[0002] At present, with the wide application of various wireless communication technologies, limited spectrum resources are becoming more and more tense; on the other hand, a large number of spectrum resources are not fully utilized

Method used

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  • Cognitive radio power control method based on quantum monkey flock search mechanism
  • Cognitive radio power control method based on quantum monkey flock search mechanism
  • Cognitive radio power control method based on quantum monkey flock search mechanism

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] combine Figure 1 to Figure 3 , the invention applies the quantum monkey swarm search mechanism to cognitive radio power control, involving two fields of cognitive radio and intelligent processing. It effectively reduces the transmission power of each cognitive user, solves the problem of energy consumption of the mobile terminal, and enables each user to obtain better utility.

[0045] The present invention is achieved through the following technical solutions, mainly comprising the following steps:

[0046] Step 1: Establish a non-cooperative power control game (NPGP) model using the cost function mechanism. There are a total of I cognitive users in the system, and the distances between their positions and the base station are different. The utility function to be optimized in the model includes the signal-to-interference ra...

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Abstract

The invention provides a cognitive radio power control method based on a quantum monkey flock search mechanism, the method comprises the following steps: establishing a non-cooperative game cognitiveradio power control model, calculating a sum of cognitive user utility functions, introducing a power penalty mechanism and selecting a form of a target function which needs to be optimized; inspiredby monkey flock activities, designing the quantum monkey flock search mechanism, generating quantum positions and number of monkeys in the quantum monkey flock; mapping a system user transmitting power and the quantum positions of the monkey flock to be in one-to-one correspondence, and calculating an adaptability value; updating an optimal quantum position of each monkey through a climbing process in the monkey flock activities; mapping the optimal quantum position in the climbing process of the monkey to a transmitting power, and updating the optimal position of the monkey through a lookingover-jumping and somersaulting process of the monkey flock activities; and iterating several times to obtain the optimal position of the monkey as an optimal solution. The method provided by the invention has wider application range and can guarantee improvement of user utility in the existing cognitive radio system, moreover, transmitting of user power is reduced.

Description

technical field [0001] The invention relates to a cognitive radio power control method based on a quantum monkey swarm search mechanism, belonging to the field of wireless communication. Background technique [0002] At present, with the wide application of various wireless communication technologies, limited spectrum resources are becoming more and more tense; on the other hand, a large number of spectrum resources are not fully utilized. In order to alleviate the contradiction between the lack of spectrum resources and the low utilization rate of spectrum resources, various dynamic spectrum sharing technologies have emerged, among which the development of cognitive radio is the most eye-catching. Cognitive radio is a key technology to realize the reuse of wireless spectrum resources. It can significantly improve the utilization rate of wireless spectrum and realize dynamic spectrum access. [0003] Cognitive radio is a wireless communication technology with artificial int...

Claims

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Application Information

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IPC IPC(8): H04W52/34H04W52/24
CPCH04W52/241H04W52/346
Inventor 高洪元刘子奇刁鸣王宇侯阳阳池鹏飞苏雨萌马雨微
Owner HARBIN ENG UNIV
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