Title :
Multidimensional modulation used in BICM-ID
Author :
Qi, X. ; Zhao, M. ; Zhou, S. ; Wang, J.
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
The performance of a BICM-ID system with multidimensional (MD) modulation is investigated. Design criteria of MD constellation labelling are proposed and BICM-ID schemes with QPSK of different dimensions are established. Simulation results show that when each data block contains 50000 information bits and the iteration number is 20, the BER of BICM-ID with six-dimensional QPSK and four-state rate 1/2 convolutional code is 10-5 at SNR=0.9 dB over an AWGN channel which is only 0.2 dB away from Berrou´s turbo code
Keywords :
AWGN channels; channel coding; convolutional codes; error statistics; interleaved codes; iterative decoding; quadrature phase shift keying; turbo codes; 0.2 dB; AWGN channel; BER; Berrous turbo code; QPSK; SNR; bit interleaved coded modulation; channel coding; convolutional code; iterative decoding system; multidimensional constellation labelling; multidimensional modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20057187
