Abstract

We intend to investigate the performance of multi-dimensional (MD) MPSK modulation for iterative demapping. Design criteria of MD MPSK constellation labeling for AWGN channels and Rayleigh fading channels are proposed based on the extrinsic information transfer (EXIT) chart. Based on our criteria, we have established bit-interleaved coded modulation with iterative decoding (BICM-ID) schemes with QPSK and 8PSK of different dimensions. Simulation results show that optimized MD modulations have a good EXIT characteristic over the two channels and can improve the system's performance in both the waterfall and the error floor region of the bit error rate (BER) curve. Specially, with a bandwidth efficiency of 1 bit/s/Hz over the AWGN channel, a BER of 10/sup -5/ can be achieved with 6-D QPSK and a 4-state rate 1/2 convolutional code at SNR of 0.9 dB.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.