Method for detecting cognitive user in opportunity spectrum sharing system

A technology of cognitive users and detection methods, applied in the field of detection of cognitive users in opportunistic spectrum sharing systems, to achieve the effects of fairness, efficient spectrum sharing, and low probability of conflicts
CN101778396BInactive Publication Date: 2012-05-09NANJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF POSTS & TELECOMM
Publication Date
2012-05-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for detecting a cognitive user in an opportunity spectrum sharing system, which relates to a design method for detecting a master user and sending data information frame length by the cognitive user (secondary user) in a system based on an opportunity spectrum access (OSA) technique in a cognitive network. The method comprises the following steps of: firstly, analyzing the testing frequency based the signal interference noise ratio of the secondary user; and secondly, defining the frame length of data transmission of the secondary user based on the testing frequency and the spectral optimization. A control channel is needed to be added in a single-channel multi-user scene, the selection and the scheduling of users are performed first, and then a method fordetecting a single user is implemented. The basic thought of the method that the occupation condition of an authorized channel by the master user and the influence on the signal interference noise ratio (SINR) of the secondary user by the master user are analyzed, and thus the detection frequency and the transmission frame length of the secondary user are designed, and an optimizing and compromising scheme is found between the throughput of the secondary user and the collision probability with the master user.
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Description

technical field

[0001] The present invention generally relates to a cognitive network based opportunistic spectrum access (OSA) technology system and a cognitive user (secondary user) detection method for a primary user and a design method for sending data information frame length. The basic idea of ​​this method is to analyze the occupancy of the primary user on the licensed channel and the influence of the primary user on the signal-to-interference-noise ratio (SINR) of the secondary user, and design the detection frequency and transmission frame length of the secondary user based on this. Find an optimized and compromised solution between the collision probability with the main user. Background technique

[0002] Opportunistic Spectrum Access (OSA) technology means that there is no need for cooperation between the primary and secondary users, and the secondary users use the spectrum resources of the primary user as they see fit. The primary user does not need to know the...

Claims

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