Enhanced HARQ employing constellation rearrangement based on bit reliability

Min Li Jia; Jing Ming Kuang; Zun Wen He

Enhanced HARQ employing constellation rearrangement based on bit reliability

Min Li Jia^*, Jing Ming Kuang, Zun Wen He

^*此作品的通讯作者

信息与电子学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

To investigate the low density parity check (LDPC) coded Chase combining hybrid ARQ (HARQ) system with 64QAM modulation, a searching algorithm is proposed for searching constellation rearrangement (CoRe) schemes with arbitrary retransmission number. Based on that, the enhanced HARQ strategies employing CoRe can be got by computer searching. Simulation results show that the proposed strategies can not only efficiently reduce the reliability variances of bits after soft combining but also significantly improve the BER performance and information transmission efficiency.

源语言	英语
页（从-至）	815-819
页数	5
期刊	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
卷	27
期	9
出版状态	已出版 - 9月 2007

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title = "Enhanced HARQ employing constellation rearrangement based on bit reliability",

abstract = "To investigate the low density parity check (LDPC) coded Chase combining hybrid ARQ (HARQ) system with 64QAM modulation, a searching algorithm is proposed for searching constellation rearrangement (CoRe) schemes with arbitrary retransmission number. Based on that, the enhanced HARQ strategies employing CoRe can be got by computer searching. Simulation results show that the proposed strategies can not only efficiently reduce the reliability variances of bits after soft combining but also significantly improve the BER performance and information transmission efficiency.",

keywords = "64QAM, Constellation rearrangement (CoRe), Hybrid ARQ (HARQ), Low density parity check (LDPC) code",

author = "Jia, {Min Li} and Kuang, {Jing Ming} and He, {Zun Wen}",

year = "2007",

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AU - Kuang, Jing Ming

AU - He, Zun Wen

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N2 - To investigate the low density parity check (LDPC) coded Chase combining hybrid ARQ (HARQ) system with 64QAM modulation, a searching algorithm is proposed for searching constellation rearrangement (CoRe) schemes with arbitrary retransmission number. Based on that, the enhanced HARQ strategies employing CoRe can be got by computer searching. Simulation results show that the proposed strategies can not only efficiently reduce the reliability variances of bits after soft combining but also significantly improve the BER performance and information transmission efficiency.

AB - To investigate the low density parity check (LDPC) coded Chase combining hybrid ARQ (HARQ) system with 64QAM modulation, a searching algorithm is proposed for searching constellation rearrangement (CoRe) schemes with arbitrary retransmission number. Based on that, the enhanced HARQ strategies employing CoRe can be got by computer searching. Simulation results show that the proposed strategies can not only efficiently reduce the reliability variances of bits after soft combining but also significantly improve the BER performance and information transmission efficiency.

KW - 64QAM

KW - Constellation rearrangement (CoRe)

KW - Hybrid ARQ (HARQ)

KW - Low density parity check (LDPC) code

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JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

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ER -

Enhanced HARQ employing constellation rearrangement based on bit reliability

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