AWGN信道上比特交织、迭代译码的格码调制

TRELLIS-CODED MODULATION WITH BIT INTERLEAVING AND ITERATIVE DECODING

论述了比特交织网格编码调制 (BICM ) .为了获取较好的性能 ,给出了AWGN信道上一种硬判决反馈迭代译码 (ID)方法 ,从而证实了具有好的汉明距离特性的卷积码能为BICM -ID提供大的Euclidean距离 .把收缩卷积码和多相位 电平调制有效地结合起来 ,组成变码率传输的简单结构 .

The bit_leaved coded modulation (BICM) was presented for bandwidth_efficient transmission over AWGN channels, a simple iterative decoding (ID) method with hard_decision feedback was suggested to achieve better performance,and it is pointed out that convolutional codes with good Hamming_distance property can provide large free Euclidean distance for BICD_ID,which allows an efficient combination of punctured convolutional codes and multiphase/level modulation, and therefore provides a simple mechanism for variable_rate transmission.