首页> 外文会议>International Conference on Communications vol.1; 20040603-05; Bucharest(RO) >PERFORMANCES OF SINGLE-CARRIER LDPC-CODED MODULATIONS WITH EXTENDED BANDWIDTH
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PERFORMANCES OF SINGLE-CARRIER LDPC-CODED MODULATIONS WITH EXTENDED BANDWIDTH

机译:具有扩展带宽的单载波LDPC编码调制的性能

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The paper presents the simulation SNR performances of a class of single-carrier coded modulations that employ the Low Density Parity Check (LDPC) error-correcting codes. The proposed modulations make use of additional bandwidth to transmit the control of the error-correcting code employed. The coding gains provided by these modulations, versus the non-coded transmissions that provide the same payload, are studied for LDPC codes with coding rates R = 0.85, 0.75, 0.5 and 0.33. The coding gains provided are close to the ones provided by coded modulations with extended bandwidth employing turbo codes, but require a simpler implementation. The coding gains range between 4.5 and 9 dB, depending on the code rate and parameters. A fast encoding method of the LDPC codes is presented as well.
机译:本文介绍了使用低密度奇偶校验(LDPC)纠错码的一类单载波编码调制的仿真SNR性能。提出的调制利用附加带宽来传输对所采用的纠错码的控制。对于编码率R = 0.85、0.75、0.5和0.33的LDPC码,研究了由这些调制提供的编码增益(与提供相同有效负载的非编码传输相比)。所提供的编码增益与采用Turbo码扩展带宽的编码调制所提供的增益接近,但需要更简单的实现。编码增益范围在4.5到9 dB之间,具体取决于编码率和参数。还提出了LDPC码的快速编码方法。

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