Embedded Multiresolution Signaling Scheme for CPFSK Modulation

This report presents the need for embedded multiresolution (MR) modulation, specifically in broadcast scenarios. Existing modulation schemes, based on MR-QAM, are not bandwidth-efficient. Efficient layered or multiresolution data transmission over bandwidth-efficient CPFSK modulation scheme has been proposed. Superiority of the proposed embedded multiresolution CPFSK (MRCPFSK) over existing methods that use time-division-multiplexing, has been shown using theoretical error bounds. Advantages of MRCPFSK include bandwidth efficiency and constant envelope of the signal. This scheme will be useful for transmission of multi-layered data (like images) over bandwidth constrained channels.