Title :
A Novel Symbol Mapping Method for BICM-ID Systems for Higher Order Signal Constellations
Author :
Navazi, Hassan M. ; Hossain, Md Jahangir
Author_Institution :
Dept. of Electr. & Comput. Eng., Islamic Azad Univ., Bonab, Iran
Abstract :
In this letter, we introduce an innovative method for generating mappings of M-ary phase-shift keying (M-PSK) and M-ary quadrature amplitude modulation (M-QAM) constellations for bit-interleaved coded modulation with iterative decoding (BICM-ID). The proposed simple method not only yields mappings for higher order constellations efficiently but also outperforms previously reported mappings. Presented results show that, in Rayleigh fading channels, the proposed mapping can gain up to 4.4 dB for a target bit error rate (BER) of 10-6, which is in the range of many practical interests over the binary switching algorithm mappings while it offers a comparable error floor. In AWGN channels, the gain is up to 5.8 dB.
Keywords :
Rayleigh channels; error statistics; interleaved codes; iterative decoding; phase shift keying; quadrature amplitude modulation; BER; BICM-ID system; M-PSK; M-ary phase-shift keying constellation; M-ary quadrature amplitude modulation constellation; Rayleigh fading channels; binary switching algorithm mapping; bit error rate; bit-interleaved coded modulation; higher order signal constellations; iterative decoding; symbol mapping method; Bit error rate; Fading; Gain; Hamming distance; Phase shift keying; Quadrature amplitude modulation; TV; BICM-ID; PSK and QAM; Signal mapping;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.2326675
