Data reception using low density parity check coding and constellation mapping

摘要

Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus (700) is described including a symbol de-mapper (710) that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder (730) that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder (732) that decodes the second substream at a second encoding rate, and a combiner (740) that combines the first substream and the second substream into a single data stream.