Cognitive network power distribution method based on interference temperature

A technology that interferes with temperature and cognitive network. It is applied in the field of cognitive network resource allocation and can solve problems such as increasing the amount of calculation.

Active Publication Date: 2012-05-09
BEIJING JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

However, if the number of cognitive users increases, the number of transmitters will also increase, and the amount of calculation will continue to increase

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  • Cognitive network power distribution method based on interference temperature
  • Cognitive network power distribution method based on interference temperature
  • Cognitive network power distribution method based on interference temperature

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Embodiment Construction

[0064] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and with the help of embodiments of the present invention.

[0065] The present invention provides a cognitive network power allocation method based on interference temperature, comprising the following steps:

[0066] First, establish a multi-cognitive user cell model, including setting one primary user transmitter and n cognitive user transmitters, the radius of the primary user cell is R, and the radius of the i-th cognitive user cell (referred to as cognitive cell) is r i , i ∈ {1,...n}. Set m measurement points (MP for short, Measurement Point) in the area of ​​the primary user. In order to facilitate mathematical description and modeling, the location setting of the measurement point is simplified. Each MP is placed on the edge of the primary user cell, that is, The distance from the primary user transmitter is the radius R of the primar...

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Abstract

The invention discloses a cognitive network power distribution method based on interference temperature. The method comprises the following steps of: establishing a multi-cognitive-user cell model; determining an interference temperature limit of a main user; determining a signal to noise ratio requirement of a receiver of each cognitive user; determining conditions of power value measurement required when the main user works normally; determining system effectiveness and constraint conditions; and adopting a simulated annealing genetic algorithm to estimate the optimal power distribution. With the adoption of the method provided by the invention, the optimal distribution of emission power is realized under in a multi-cognitive-user condition; and resources can be sufficiently shared under the precondition that the cognitive users do not interfere with the main user.

Description

technical field [0001] The invention relates to the technical field of cognitive network resource allocation. More specifically, the present invention relates to a cognitive network power allocation method based on interference temperature. Background technique [0002] Cognitive Radio (CR) is a radio technology that improves the utilization of spectrum resources. Its core idea is that CR has the ability to learn and exchange information with the surrounding environment to perceive and utilize the available spectrum in this space and limit and reduce conflicts. Cognitive radio networks mainly include two types of users: primary users or authorized users, that is, users who have the qualification to use a certain spectrum authorized by the spectrum management agency; cognitive users, or secondary users, that are not authorized by the spectrum management agency A license to use a certain spectrum, but through the use of cognitive radio technology, users who can use this spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W72/08
CPCY02D30/70
Inventor 赵军辉关欣李秀萍
Owner BEIJING JIAOTONG UNIV
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