Title :
Multilevel coded 16-QAM schemes for Rayleigh fading channels
Author :
Gu, Young-Mo ; Lee, Choong Woong
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
2/13/1997 12:00:00 AM
Abstract :
Multilevel codes show better performance compared with trellis codes on Rayleigh fading channels at comparable decoder complexity and bandwidth. However, they suffer from performance degradation due to error propagation in the multistage decoder. The authors, with a view to minimising the error propagation, compare three multilevel coded 16-QAM schemes which are four-level codes, I/Q separated two-level codes and I/Q separated two-level codes with a new set partitioning
Keywords :
Rayleigh channels; decoding; fading; quadrature amplitude modulation; I/Q separated two-level codes; Rayleigh fading channels; bandwidth; decoder complexity; error propagation; four-level codes; multilevel coded 16-QAM schemes; performance degradation; set partitioning;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970093
