A sheme of two code-rates TCM-QAM with high coding gain is presented, its signals space is mapping for 90° rotationally invariant codes(RIC).
A sheme of two code-rates TCM-QAM with high coding gain is presented, its signals space is mapping for 90° rotationally invariant codes(RIC).
摘要提出了一种适用于慢变通道的双码率TCM-QAM系统方案，该方案有较高的编码增益，同时满足90°旋转不变要求。