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標題: | 極化碼之編碼調變研究 A Study of Polar Coded Modulation |
作者: | Young-En King 金揚恩 |
指導教授: | 林茂昭(Mao-Chao Lin) |
關鍵字: | 極化碼,極化碼之編碼調變,區段編碼調變,區段記憶編碼調變,位元交織編碼調變, polar coding,polar coded modulation,block coded modulation(BCM),block coded modulation with inter-block memory(BCMIM),bit-interleaved coded modulation with iterative decoding(BICM-ID), |
出版年 : | 2018 |
學位: | 碩士 |
摘要: | 近年來,極化碼以第一個能被數學證實到達通道容量的通道編碼聞名。而眾所皆知,將通道編碼與調變結合的技術一直是有限頻寬的數位傳輸上極具吸引力的方案。一般來說,像是位元交織編碼調變(BICM)等軟式輸入與軟式輸出(soft-input soft-output)的編碼調變技術會比傳統的編碼調變技術有更優秀的效能,然而,由極化碼經過解碼得來的軟式值(soft value)並不精準,這將導致即使經過軟式輸入與軟式輸出的編碼調變技術,效能也未能獲得有效的改善。因此在本篇論文,我們設計在可加性高斯白雜訊(AWGN)通道下以16-正交振幅調變(QAM)的極化碼之編碼調變架構並考慮不同解碼方式、編碼調變技術以及不同標示規則(labeling rule)的星座圖(constellation),以比較其效能優劣。 In recent years, polar code is a channel coding which is the first provable capacity-achieving code. As we known, a coding and modulation combined technique has been known to be an attractive scheme for digital transmission over band-limited channels. In general, the performance of soft-input soft-output coded modulation scheme like bit-interleaved coded modulation with iterative decoding is better than conventional coded modulation. However, the soft value from polar decoding (i.e., successive cancellation decoding, successive cancellation list decoding and cyclic redundancy check aided successive cancellation list decoding) is not accurate so that it is hard to improve the performance from soft-input soft-output coded modulation scheme. Thus, in this thesis, we present polar coded modulation schemes using 16-QAM with different scenarios over additive white Gaussian noise channel and compare the performance between different coded modulation schemes. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/72214 |
DOI: | 10.6342/NTU201802813 |
全文授權: | 有償授權 |
顯示於系所單位: | 電信工程學研究所 |
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