Analysis of Delayed Bit-Interleaved Coded Modulation for APSK

In this work, we study delayed bit-interleaved coded modulation (DBICM) on amplitude and phase-shift keying (APSK) constellation. APSK is attractive for satellite communications, including DVB-S2. We find that the capacities of DBICM are identical to the coded modulation capacity. We also show that good performance can be achieved with a small delay value. We show these results by channel capacity analysis and the simulation results using low-density parity-check codes.