A Perceptual Information Fusion Method Based on Energy Detection

A technology for sensing information and energy detection, applied in the field of communication, can solve problems such as high error probability of missed detection, high false alarm error probability, and low false alarm error probability

Inactive Publication Date: 2019-01-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

Among them, the AND rule has a lower false alarm error probability and a higher missed detection error probability; the OR rule can effectively reduce the missed detection error probability, but it will lead to a higher false alarm error probability; and K-out-of-N The law can achieve a more compromised false alarm and missed detection error probability by adjusting the K value

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  • A Perceptual Information Fusion Method Based on Energy Detection
  • A Perceptual Information Fusion Method Based on Energy Detection
  • A Perceptual Information Fusion Method Based on Energy Detection

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Embodiment Construction

[0052] The technical solution of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0053] In order to verify the performance of the sensory information fusion mechanism based on energy detection, the present invention compares the performance with the traditional AND, OR and K-out-of-N rules in the wireless channel environment including path loss, shadow and small-scale fading.

[0054] Perceptual information fusion mechanism based on AND and OR rules:

[0055] In the sensing fusion based on the AND rule, only when the local sensing scanning results of all cognitive nodes participating in cooperative sensing show that a certain authorized channel is busy, the fusion result is that the authorized channel is occupied; as long as there is a local cognitive node The result of perceptual scanning is that the channel is not occupied, and the fusion result is that the channel is not occupied. Then the detecti...

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Abstract

The invention belongs to the field of communication technologies, and in particular relates to an implementation scheme for cooperative spectrum sensing based on cognitive radio technology in a wireless communication system. A sensing information fusion method based on energy detection, after all cognitive nodes complete local spectrum sensing based on energy detection, the fusion center and all cognitive users participating in spectrum sensing use the sensing information fusion method provided by the present invention to realize sensing information Fusion, while improving the accuracy and spatial scope of spectrum sensing results, reduces the time overhead of all cognitive nodes reporting local sensing decision results to the fusion center, and achieves better cooperative sensing performance than traditional cooperative sensing fusion rules.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a cooperative spectrum sensing implementation scheme based on cognitive radio technology in a wireless communication system. Background technique [0002] With the rapid development of mobile wireless communication technologies and the continuous emergence and popularization of broadband wireless communication services, the remaining available idle wireless spectrum resources are becoming more and more limited. At the same time, the utilization rate of spectrum resources in most wireless communication frequency bands that have been officially allocated by radio spectrum management agencies is still very low. According to the measurement of the authority of the United States, more than 70% of the allocated wireless spectrum resources are not fully utilized by service providers. This situation is obviously contradictory to the shortage of spectrum resources that ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCY02D30/70
Inventor 谭雪松汪洁然
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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