부호화된 OFDMA-CDM 시스템에서 협대역 재밍 신호 제거 기법

The robustness to jamming signal is an important property for military communication systems. Some previous work has shown that erasure decoding or frequency domain code division multiplexing (CDM) can reject the intereference. In general, however, the jamming signal has higher power than ordinary interference which leads to insufficient jamming rejection performance of these schemes. To mitigate this insufficiency, we propose an erasure combining technique which inserts erasure before despreading of the CDM scheme. By this approach, high power narrowband jamming could be efficiently rejected.