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Performance of low-density parity-check codes with 16-ary MR-CMD-PSK modulations

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2 Author(s)
Hui-Shi Song ; Wireless Technol. Innovations Labs, Beijing Univ. of Posts & Telecommun., China ; Ping Zhang

In this paper, we present the results of our investigation concerning the performance of low-density parity-check (LDPC) codes associated with high spectral efficiency 16-ary multi-ring constant-modulus-difference phase-shift keying (MR-CMD-PSK) modulations on a complex additive white Gaussian noise (AWGN) channel. 16-ary MR-CMD-PSK modulations consist of 4R-CMD-QPSK, 2R-CMD-8PSK and 16PSK, and we propose one method of determining the reliability for each bit in these three modulations. The performance curves of hard-decision and soft-decision decoding algorithms for different modulation modes are offered, and the uncoded modulation performance curves for different modulations are also given for the purpose of comparison incidentally.

Published in:

Communication Technology Proceedings, 2003. ICCT 2003. International Conference on  (Volume:2 )

Date of Conference:

9-11 April 2003