Abstract
该文在双向中继信道中基于网格编码调制(Trellis Coded Modulation, TCM)提出了一种信道编码与物理层网络编码的联合实施机制。该机制采用TCM，将编码和调制统一考虑，提高了编码序列的自由距离，从而获得更高的编码增益。此外，利用卷积码和MAC-XOR网络编码的线性性质，使得中继节点只要直接估计网络编码的码字，这样中继节点进行TCM译码的复杂度减少了50%。该机制同时考虑信道编码技术、调制技术以及物理层网络编码三者联合设计的问题，既提高信息传输率，又保证了可靠性。
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