Cooperative spectrum sensing method based on double-threshold energy detection
A technology of cooperative spectrum sensing and energy detection, which is applied in the field of cooperative spectrum sensing based on double-threshold energy detection, can solve problems such as repeated investment, communication system compatibility and inheritance difficulties, waste of funds, etc., and achieve the effect of improving detection performance
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[0031] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings:
[0032] The invention discloses a cooperative spectrum sensing method based on dual-threshold energy detection, which includes the following steps:
[0033] Step 1) Perceive user perception data;
[0034] Step 2), comparing the statistics of the perception data with the preset first threshold threshold and second threshold threshold respectively, where the first threshold threshold is greater than the second threshold threshold;
[0035] Step 3), if the statistic of the sensing data is greater than the preset first threshold, it is determined that the frequency band is not idle, and the sensing user sends a presence to the data center;
[0036] Step 4), if the statistic of the perception data is less than the preset second threshold, it is determined that the frequency band is idle, and the perception user sends Absence to the data center;
[00...
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