A survey on DME interference mitigation techniques for L-band aeronautical communication

The aeronautical communication system has an influential role in future because the air traffic is increasing day by day. The Future Communication Infrastructure(FCI) for aeronautical communication is seeking for a better transmission scheme. As the demand for frequency spectrum for aeronautical communication is raising up, and the VHF spectrum utilization is almost saturated, FCI has developed two candidates for communication; L-DACS1 and L-DACS2 which are operating in L-band frequencies. These systems are inserted in L-band in an inlay approach. The majority part of L- band is occupied by DME(Distance Measuring Equipment) which induces interference to the communication candidates. So, for a better communication in L-band, we have to combat against the DME interference. Here presenting a survey on several methods to mitigate DME interference.