Focusing on the problem that existing linear dispersion (LD) space-time codes have a high encoding and decoding complexity, a type of orthogonal linear dispersion (OLD) space-time codes is proposed.
针对多输入多输出系统中现有的线性分散(LD)空时码编、解码复杂度高的问题，提出了一类正交线性分散(old)空时编码。
This paper mainly expound the encoding and decoding principle of Q - ary LDPC codes, and introduce a Fourier transform decoding method with low complexity.
本文主要阐述了多进制ldpc码的编译码原理，并介绍了一种可简化译码的傅立叶变换译码算法。
Abstract : The structured low density parity check (LDPC) codes can be described by the base-matrices and lifting factors, which have low encoding/decoding complexity and good coding performance.
摘要 结构化低密度奇偶校验码可通过基矩阵和扩展因子描述，具有较低的编译码复杂度和优异的译码性能。
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