基于新型距離度量的以卷積碼為分量碼的MLC／PDL性能
Performance of MLC/PDL with Convolutional Codes as Component Codes under a New Distance Metric
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摘要: 該文著重研究了一種新的距離度量在以卷積碼為分量碼、MQAM調(diào)制的MLC/PDL系統(tǒng)中的應(yīng)用。在Rayleigg衰落信道下通過計(jì)算機(jī)仿真,驗(yàn)證了此度量的有效性,并得到在此度量下設(shè)計(jì)多級碼的準(zhǔn)則。
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關(guān)鍵詞:
- 距離度量; 多級編碼; 截?cái)嗑矸e碼; 映射; Rayleigh衰落信道
Abstract: A new distance metric for MLC/PDL (MultiLevel Coding/ Parallel Decoding of Levels) with MQAM constellation is proved to be applicable when punctured convolutional code is used as component code over Rayleigh fading channel. The efficiency has been demonstrated by detailed simulation results. The performance comparison between punctured convolutional code and block code under the same condition is also given. -
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