Title :
Multi-dimensional mappings of M-ary constellations for BICM-ID systems
Author :
Tran, Nghi H. ; Nguyen, Ha H.
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask.
Abstract :
This paper studies bit-interleaved coded modulation with iterative decoding (BICM-ID) systems that employ multi-dimensional mappings of M-ary constellations to improve the error performance over Rayleigh fading channels. Based on the analytical evaluations of the asymptotic bit error rate (BER), the distance criteria for the mapping designs can be obtained. A binary switching algorithm (BSA) is then applied to find the optimal mappings with respect to the asymptotic performance. Simulation and analytical results show that the use of multi-dimensional mappings of M-ary constellations can significantly improve the error performance
Keywords :
Rayleigh channels; binary codes; error statistics; interleaved codes; iterative decoding; modulation coding; BER; M-ary constellations; Rayleigh fading channels; asymptotic bit error rate; binary switching algorithm; bit-interleaved coded modulation with iterative decoding; error performance; multidimensional mappings; Analytical models; Bandwidth; Bit error rate; Constellation diagram; Fading; Interleaved codes; Iterative decoding; Modulation coding; Quadrature phase shift keying; Signal mapping;
Conference_Titel :
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location :
Saskatoon, Sask.
Print_ISBN :
0-7803-8885-2
DOI :
10.1109/CCECE.2005.1556894
