Cognitive ratio power control method

A technology of cognitive radio and power control, applied in the field of cognitive radio, which can solve problems such as slow convergence speed

Inactive Publication Date: 2012-06-13
SOUTHEAST UNIV
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The AFSA algorithm has a good global search ability, is insensitive to the initial value and parameter selection, has strong robustness, and is easy to implement, but when the problem scale is too large, the convergence speed slows down in the later stage of evolution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cognitive ratio power control method
  • Cognitive ratio power control method
  • Cognitive ratio power control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0047] Step 1: Establish a new power control model based on non-cooperative game theory proposed by the present invention

[0048] 1. NPG-New Algorithm

[0049] I. Wireless CR system

[0050] In a wireless (Cognitive Radio, CR) system, there are N users, M is the total number of bits transmitted in a data frame, L is the number of information bits in a data frame (Li , in the additive white Gaussian noise (Additive White Gaussian Noise, AWGN) channel, for the non-correlated frequency shift keying (Frequency-shift keying, FSK) modulation mode, the effective function is:

[0051] f ( r i ) = ( 1 - e - ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a cognitive ratio power control method. The method improves a revenue function on the basis of a non-cooperative game power control algorithm proposed by D.Goodman, and provides a new power control algorithm based on non-cooperative game; and simultaneously, for improving the searching precision of the power control algorithm, the invention further provides an improved shuffled frog leaping algorithm. The cognitive radio power control method of the invention has higher calculation accuracy, implements effective control on transmitting power of users, and can improve system performance obviously.

Description

technical field [0001] The present invention relates to a cognitive radio technology, in particular to a cognitive radio power control method. Background technique [0002] With the rapid development of information technology, wireless spectrum has become an indispensable and precious resource in modern society. The growth of wireless services and the development of wireless communication systems make spectrum resources increasingly scarce. However, studies have shown that more than 70% of the allocated spectrum resources have not been fully utilized, which obviously contradicts the widespread concern about the shortage of spectrum resources. [0003] Cognitive Radio (CR) is a new smart radio technology. It perceives the state of spectrum usage through spectrum detection technology, and can adaptively adjust signal frequency and transmission power to adapt to changes in the wireless environment and achieve opportunistic Use idle spectrum to improve communication system reli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W52/24
Inventor 赵力邹采荣张潇丹余华王开
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap