PROJECT TITLE :
EXIT-Aided Bit Mapping Design for LDPC Coded Modulation with APSK Constellations
In this paper, the bit mapping technique is applied to the low-density parity-check (LDPC) coded modulation system with Gray-APSK constellations for the primary time. A multi-grid searching algorithm (MGSA) primarily based on extrinsic data transfer (EXIT) chart analysis is initial proposed to optimize the bit mapping distribution, when that an occasional-complexity bit mapper consisting of a structural bit interleaver and a demultiplexer (DEMUX) is devised. Compared to the LDPC coded QAM system laid out in DVB-T2, the proposed APSK system with the optimized DEMUX will achieve up to 0.83dB gain underneath additive white Gaussian noise (AWGN) channel.
Did you like this research project?
To get this research project Guidelines, Training and Code... Click Here