Abst'/> Modification of extrinsic information for parallel concatenated Gallager/Convolutional code to improve performance/complexity trade-offs
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Modification of extrinsic information for parallel concatenated Gallager/Convolutional code to improve performance/complexity trade-offs

机译:修改并行连接良良智能/卷积码的外在信息,以提高性能/复杂性权衡

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AbstractTo benefit the properties of both Low-Density Parity-Check (LDPC) and Turbo Convolutional Codes (TCC), we propose a practical concatenated Gallager/Convolutional code in a turbo coding way. The modified code creates a balance between the advantages and the disadvantages ofLDPCandTCCin terms of the overall complexity and latency. This will be done through two different componentSISOdecoders;LDPCand convolutional code of the same rate1/2without interleaver. Since the twoSISOdecoders are different in nature, they exchange extrinsic information that will be easily adapted to each other. The study of computation complexity and decoding performance over anAWGNchannel indicates that such approach leads to excellent performance because of several factors. The proposed approach achieves a trade-off between waterfall and error floor regions. It reduces complexity decoding compared toTCCand3D-TCC. It provides a better coding gain overLDPCandPCGC(Parallel Concatenated Gallager Codes). These features will ensure optimal outcomes and cost-performance ratio, and thus, this trend can be the best choice for today's communication systems.
机译:<![cdata [ 抽象 使低密度奇偶校验( ldpc < / mml:mi> )和turbo卷积码( tcc )< / MML:MO> ,我们提出了一种以涡轮编码方式提出了一个实用的连接性巨大巨大的巨大码。修改的代码在 ldpc tcc 在整体复杂性和延迟方面。这将通过两个不同的组件 siso 解码器; ldpc 和同一速率的卷积代码 1 / 2 < / mml:mn> 没有交织器。自从两者 siso 解码器在自然界中不同,它们交换外在信息将很容易地互相适应。通过 awgn 频道表示此类方法由于几个因素而导致出色的性能。拟议的方法实现了瀑布与错误楼层区域之间的权衡。与 TCC 3 d - tcc 。它提供了更好的编码增益超过 ldpc pcgc (并行连接的Gallager Codes)。这些功能将确保最佳的结果和成本 - 绩效比率,因此,这种趋势可能是当今通信系统的最佳选择。

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