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A User-selected Cooperative Spectrum Sensing Method Based on Dual Threshold Energy Detection

A technology for cooperative spectrum sensing and energy detection, which is applied in the field of user-selected cooperative spectrum sensing based on dual-threshold energy detection, which can solve the problems of large detection delay, energy consumption PUs interference, and failure to establish, so as to reduce the average sensing time and improve detection. performance effect

Active Publication Date: 2021-09-28
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above assumption cannot be established in practical CRNs
[0006] After research, it is found that in the current related research schemes, allowing all cooperative SUs to report the sensing results may lead to large detection delays, energy consumption, and interference to PUs.

Method used

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  • A User-selected Cooperative Spectrum Sensing Method Based on Dual Threshold Energy Detection
  • A User-selected Cooperative Spectrum Sensing Method Based on Dual Threshold Energy Detection
  • A User-selected Cooperative Spectrum Sensing Method Based on Dual Threshold Energy Detection

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Embodiment Construction

[0029] In order to express the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation cases.

[0030] figure 1 The flow chart of a preferred embodiment of the user selection cooperative spectrum sensing method based on dual-threshold energy detection in the present invention, the method includes the following steps:

[0031] Step 101: adopting the best signal-to-noise ratio user selection strategy to report information;

[0032] Step 102: Perform local detection using a double-threshold energy detection algorithm;

[0033] Step 103: Use the maximum ratio combining algorithm for information fusion.

[0034] In order to realize the best signal-to-noise ratio user selection strategy in the step 101, figure 2 The sensing process for users to choose a cooperative spectrum sensing strategy is given, including:

[003...

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Abstract

The invention discloses a user selection cooperative spectrum sensing method based on dual-threshold energy detection. Fusion; the present invention can not only effectively improve the detection probability of cooperative spectrum sensing, but also reduce the average sensing time, thereby improving the detection performance.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a user selection cooperative spectrum sensing method based on double-threshold energy detection. Background technique [0002] With the rapid development of communication networks and the explosive growth of business requirements, especially the emergence of highly dense heterogeneous networks such as the fifth generation (5G) wireless communication systems, how to properly solve the serious shortage of wireless spectrum resources is an important task. Challenging tasks. As we all know, the current spectrum management organization allocates most of the spectrum bandwidth to exclusive authorized users (Primary Users, PUs), and does not allow secondary users (Secondary Users, SUs) to access the spectrum bandwidth. The spectrum bandwidth allocated to PUs is not utilized most of the time. Therefore, in order to improve the utilization of spectrum resources, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04W16/14
Inventor 张海波张劲李方伟
Owner CHONGQING UNIV OF POSTS & TELECOMM