Hybrid Non-Binary Repeated Polar Codes
Hybrid Non-Binary Repeated Polar Codes
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DOI：
10.1109/twc.2022.3159807
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发表时间：
2021-06
影响因子：
10.4
通讯作者：
Fariba Abbasi;Hessam Mahdavifar;E. Viterbo
中科院分区：
文献类型：
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作者：
Fariba Abbasi;Hessam Mahdavifar;E. Viterbo
以中等速率将最新的代码与重复代码串联成为一种实用解决方案，该解决方案已在各种标准中用于超低功率设备（例如The-Internet Internet（Iot）网络）。在本文中，我们为需要以非常低的信噪比（SNR）制度运行的这种应用提出了一种新颖的串联机制。在拟议的方案中，外代码是一个分为两个阶段构建的混合极性代码，一个带有二进制内核，另一个带有二进制内核，但在二进制扩展字段上应用。内部代码是非二进制乘法重复代码。这种特殊的结构继承了极性代码的低复合解码结构，同时与内部非二进制乘数重复方案进行了串联。提出的方案的解码是使用循环冗余检查（CRC）的连续取消列表（SCL）解码器对添加性白色高斯噪声（AWGN）和瑞利褪色通道进行的。仿真结果表明，与具有可比的解码复杂性的极性重复方案相比，提出的杂种非二元重复码可提供性能增长。
Concatenating the state-of-the-art codes at moderate rates with repetition codes has emerged as a practical solution deployed in various standards for ultra-low-power devices such as in Internet-of-Things (IoT) networks. In this paper, we propose a novel concatenation mechanism for such applications which need to operate at very low signal-to-noise ratio (SNR) regime. In the proposed scheme, the outer code is a hybrid polar code constructed in two stages, one with a binary kernel and another also with a binary kernel but applied over a binary extension field. The inner code is a non-binary multiplicative repetition code. This particular structure inherits low-complexity decoding structures of polar codes while enabling concatenation with an inner non-binary multiplicative repetition scheme. The decoding for the proposed scheme is done using cyclic redundancy check (CRC) aided successive cancellation list (SCL) decoder over additive white Gaussian noise (AWGN) and Rayleigh fading channels. Simulation results demonstrate that the proposed hybrid non-binary repeated polar code provides performance gain compared to a polar-repetition scheme with comparable decoding complexity.