DFDM — Dynamic frequency division multiplexing

This paper presents the DFDM (Dynamic Frequency Division Multiplexing) system, a dynamic digital multi-carrier transceiver concept. The system aims at exploiting the spectrum fragmentation in widely separated spectrum bands, which is due to guard bands provided to channels and random spectrum allocations. The system implements dynamic spectrum exploitation of the white spaces in UHF (Ultra High Frequency) band and also below noise floor communication links.