论文标题
SCMA的新型K重复设计
A Novel K-Repetition Design for SCMA
论文作者
论文摘要
这项工作通过采用网络编码（NC）原理来编码不同的数据包，为LDPC编码上行链路SCMA提供了一种新型的基于K-Repetition的HARQ方案，其中k-Repetition是一种新兴技术（建议在3GPP Release 15中使用），以增强可靠性，并在未来的大规模机器型通信中延迟延迟。这种方案称为NC辅助K-Repetition SCMA（NCK-SCMA）。我们引入了一种联合迭代检测算法，以改善从建议的LDPC编码的NCKSCMA系统中检测数据。仿真结果证明了NCK-SCMA的益处具有较高的吞吐量和提高的可靠性，而可靠性比常规的K-重复SCMA的好处。
This work presents a novel K-Repetition based HARQ scheme for LDPC coded uplink SCMA by employing a network coding (NC) principle to encode different packets, where K-Repetition is an emerging technique (recommended in 3GPP Release 15) for enhanced reliability and reduced latency in future massive machine-type communication. Such a scheme is referred to as the NC aided K-repetition SCMA (NCK-SCMA). We introduce a joint iterative detection algorithm for improved detection of the data from the proposed LDPC coded NCKSCMA systems. Simulation results demonstrate the benefits of NCK-SCMA with higher throughput and improved reliability over the conventional K-Repetition SCMA.
