Spectrum sensing method based on authorized user transmitter transmission mode classification
The invention relates to a spectrum sensing method based on authorized user transmitter transmission mode classification, and belongs to the field of wireless communication. The method comprises the following steps: firstly, dividing a target geographic area into Q grids with the same size; secondly...
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| creator | WANG XIN SHEN BIN YAN TINGQIU CHEN QIANBIN |
| description | The invention relates to a spectrum sensing method based on authorized user transmitter transmission mode classification, and belongs to the field of wireless communication. The method comprises the following steps: firstly, dividing a target geographic area into Q grids with the same size; secondly, selecting a HOG and SVM combined method in machine learning to obtain transmission mode categoriescorresponding to N PUTs in the target geographic area, thereby determining the PUT in an ON state; and finally, obtaining an availability label for an LFB by utilizing the distance between the SU andeach PUT in the ON state so as to determine that the SU selects an LFB access mode: (1) the SU can access the LFB; (2) the LFB cannot be accessed; and (3) not determined, namely the SU needs to further judge whether the LFB can be accessed or not through a signal detection mode. According to the invention, the opportunity that the SU accesses the LFB is increased, the spectrum utilization rate ofthe LFB is improved, and i |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION |
| title | Spectrum sensing method based on authorized user transmitter transmission mode classification |
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