| 摘要 |
Disclosed are an apparatus and a method for reducing the effect of an interference signal present in the same channel in a frequency hopping spread spectrum (FHSS) system. The apparatus of the present invention comprises: a group classification part for classifying the entire channels of the FHSS system into a certain number of groups according to the channel bandwidth unit of an FS interference signal; an FS interference elimination part for eliminating a group in which an FS interference exists from said certain number of groups based on the packet error rate (PER) of said certain number of groups that have been classified; and an FD interference avoidance part for avoiding interference by transmitting a packet only if an interference signal does not exist by estimating the existence of said FD interference signal based on a time sequence with respect to the channel to be used for the next frequency hopping (FH), when transmitting a signal by utilizing FH using channels wherein said FS interference signal does not exist. Thus, the present invention enables further shortening of the time taken for FS interference avoidance, and efficient avoidance of FD interference, thereby being capable of obtaining enhanced transmission performance.
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