Precoder-aided iterative detection assisted multilevel coding and three-dimensional EXIT-chart analysis
Precoder-aided iterative detection assisted multilevel coding and three-dimensional EXIT-chart analysis
复制标题
预编码器辅助迭代检测辅助多级编码和三维退出图分析
DOI：
10.1109/wcnc.2006.1696478
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
L. Hanzo
中科院分区：
文献类型：
--
作者：
R. Tee;S. Ng;L. Hanzo
A novel three-dimensional (3D) EXIT chart is developed for investigating the iterative behaviour of multilevel coding (MLC) invoking multistage decoding (MSD). The extrinsic information transfer characteristics of both the symbol-to-bit demapper used and those of the different protection constituent decoders suggest that potential improvements can be achieved by appropriately designing the demapper. The proposed 3D EXIT chart is then invoked for studying the precoder-aided multilevel coding scheme employing both MSD and parallel independent decoding (PID) for communicating over AWGN and uncorrelated Rayleigh fading channels with the aid of 8PSK modulation. At BER=10-5, the precoder was capable of enhancing the achievable Eb/N0 performance by 0.5 dB to 2.5 dB over AWGN and Rayleigh channels, respectively
