SYSTEMS AND METHODS FOR DUAL-CARRIER MODULATION ENCODING AND DECODING

摘要

Systems and methods for dual-carrier modulation (DCM) encoding and decoding for communication systems. Some embodiments comprise a DCM encoder (14) for applying a pre-transmission function to at least one 16-QAM input symbol and mapping resulting transformed symbols onto at least one larger constellation prior to transmission. Some embodiments joint decode, by a DCM decoder (38), a predetermined number of received data elements and compute a set of log-likelihood ratio (LLR) values (48) for at least eight bits from a resulting at least one transformed symbol.