APPARATUS FOR AVOIDING INTERFERENCE NOISE IN A FHSS SYSTEM AND METHOD THEREOF CAPABLE OF OBTAINING IMPROVED TRANSMISSION PERFORMANCE BY AVOIDING FD INTERFERENCE

摘要

PURPOSE: An apparatus for avoiding interference noise in a FHSS(Frequency Hopping Spread Spectrum) system and method thereof are provided to reduce time that is spent for avoiding FS interference by transmitting a packet when an interference signal is not detected.;CONSTITUTION: A group division unit(1210) classifies whole channels of a FHSS system to prescribed groups according to channel bandwidth unit of a FS interferential signal. FS interference elimination unit(1220) eliminates group including FS interference in the prescribed groups based on PER(Packet Error Rate) of prescribed group. A FD interference avoidance unit(1230) sequentially detects presence of an interference signal about channel used for next FH(Frequency Hopping). The FD interference avoidance unit transmits a packet about a channel where the interference signal is not existed and avoids the interference signal.;COPYRIGHT KIPO 2011