CHANNEL AND POWER DISTRIBUTION SYSTEM AND METHOD BASED ON ADJACENT-CHANNEL INTERFERENCE

摘要

The present invention provides a channel and power distribution method based on adjacent-channel interference. The method comprises the following steps: calculating channel distance limit of sub-channels, and marking a priority of a secondary user network terminal; selecting sub-channels with smallest channel distance limit in available sub-channel sets to form a smallest channel distance limit sub-channel set when the available sub-channel sets of the secondary user network terminal are not null sets; sorting elements in the smallest channel distance limit sub-channel set in ascending order according to transmit power of the secondary user network terminal meeting a smallest signal to interference ratio to form a subset; and performing transmission by using a first element of the subset as a sub-channel of the secondary user network terminal and with a highest priority. In the present invention, on the premise that the adjacent-channel interference limit is met, efficient spectrum utilization is implemented by means of joint distribution of channels and power. The present invention further provides a channel and power distribution system based on the adjacent-channel interference.