Resource Allocation Method for Green Cognitive Wireless System Based on Sensing Information

A cognitive wireless and system resource technology, applied in the field of green cognitive wireless system resource allocation, can solve the problems of poor system energy efficiency and high EPG interruption index, and achieve the effect of optimizing energy efficiency and reducing interruption index

Active Publication Date: 2017-11-03
HOHAI UNIV
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AI Technical Summary

Problems solved by technology

In the prior art, the resource allocation method of the green cognitive wireless system using perception information has a high EPG outage index, and the energy efficiency of the system is poor.

Method used

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  • Resource Allocation Method for Green Cognitive Wireless System Based on Sensing Information
  • Resource Allocation Method for Green Cognitive Wireless System Based on Sensing Information
  • Resource Allocation Method for Green Cognitive Wireless System Based on Sensing Information

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Embodiment Construction

[0025] The technical solution of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0026] The model of the green cognitive wireless system of the present invention is as figure 1 As shown, including primary user transmitter (PT), secondary user receiver (SR), primary user receiver (PR), secondary user transmitter (ST) and perceptron. where, the fading channel parameter between PT and SR is h psi , the fading channel parameter between TR and ST is h spi , the fading channel parameter between SR and ST is h si , and the corresponding modular squares are:

[0027] gamma psi =|h psi | 2 ,γ spi =|h spi | 2 ,γ si =|h si | 2 (1)

[0028] The green cognitive wireless system resource allocation method using perception information of the present invention includes the following steps:

[0029] S1: Initialize P si (γ);

[0030] S2: if And gamma si ≥γ vi , proceed to step S3; otherwise, turn off the subcarrier and ...

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Abstract

The invention discloses a green cognitive wireless system resource allocation method based on perceptual information. According to the method, the perceptual information is considered, the optimum allocation power of a system is obtained, an EPG (energy-per-goodbit) interruption index can be effectively reduced, and the energy efficiency of the system is optimized.

Description

technical field [0001] The invention relates to resource allocation of a cognitive wireless system, in particular to a method for resource allocation of a green cognitive wireless system using perception information. Background technique [0002] In the green cognitive wireless system, although the transmitted pilot signal is of great significance for channel estimation, it does not carry information, which can be regarded as a waste of system power resources to a certain extent. Therefore, a proper balance between the system performance requirements and the energy efficiency of data transmission is in line with the requirements of green mobile communication, and cognitive radio technology can be the way to realize it. In cognitive radio in MIMO and SISO environments, secondary users can share the bandwidth of primary users through various methods. Transmit power is a major factor in determining system communication speed, reliability, and power consumption. For a system w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/003H04W72/0473Y02D30/70
Inventor 毛明禾曹宁胡一帆陈晓阳叶玉昌
Owner HOHAI UNIV
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