A Low PAPR Constellation Mapping Scheme for Rate Compatible Modulation

A Low PAPR Constellation Mapping Scheme for Rate Compatible Modulation
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一种用于速率兼容调制的低PAPR星座映射方案

DOI:
10.1109/lcomm.2015.2508027
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发表时间:
2016-02
期刊:
IEEE COMMUNICATIONS LETTERS
影响因子:
--
通讯作者:
Chen Chang Wen
Chen Chang Wen
中科院分区:
其他
文献类型:
--
作者:
Duan Ruifeng;Liu Rongke;Shirvanimoghaddam Mahyar;Li Yonghui;Chen Chang Wen

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本文提出了一种新颖的非线性星座映射(NLCM)方案,用于中低信噪比(SNRs)下的速率兼容调制(RCM)方法。在NLCM中,每个RCM编码符号被映射到一个复值幅度相移键控(APSK)星座点。此外,我们还提供了一种设计宽信噪比范围码度和权值集的新方法。提出的NLCM是为了提高吞吐量,同时降低峰值平均功率比(PAPR)。分析和仿真结果表明,NLCM方案在吞吐量和PAPR方面优于原始RCM方案。
This letter proposes a novel nonlinear constellation mapping (NLCM) scheme for the rate compatible modulation (RCM) approach in low-to-moderate signal to noise ratios (SNRs). In NLCM, each RCM coded symbol is mapped to a complex-valued amplitude phase shift keying (APSK) constellation point. Moreover, we provide a novel method of designing code degree and weight set for a wide SNR range. The proposed NLCM is developed to increase the throughput and decrease the peak to average power ratio (PAPR) at the same time. Both analysis and simulation results show that the NLCM scheme outperforms the original RCM in terms of throughput and PAPR.
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