On the Application of Quasi-Degradation to MISO-NOMA Downlink
On the Application of Quasi-Degradation to MISO-NOMA Downlink
复制标题
准降解在MISO-NOMA下行链路中的应用
DOI：
10.1109/tsp.2016.2603971
复制
发表时间：
2016-12-01
影响因子：
5.4
通讯作者：
Karagiannidis, George K.
中科院分区：
文献类型：
--
作者：
Chen, Zhiyong;Ding, Zhiguo;Karagiannidis, George K.
研究了多输入单输出（MISO）下行链路中的非正交多址（NOMA）设计。最近开发的概念，准退化，NOMA下行链路传输的影响进行了研究。在此基础上，提出了一种混合NOMA（H-NOMA）预编码算法。利用H-NOMA预编码的特性，提出了一种低复杂度的顺序用户配对算法，进一步提高了系统的整体性能。分析和数值计算结果表明，通过平均功耗和中断概率的H-NOMA预编码的性能，而传统的计划，如脏纸编码和迫零波束成形，被用作基准。
dIn this paper, the design of non-orthogonal multiple access (NOMA) in a multiple-input-single-output (MISO) downlink scenario is investigated. The impact of the recently developed concept, quasi-degradation, on NOMA downlink transmission is first studied. Then, a Hybrid NOMA (H-NOMA) precoding algorithm, based on this concept, is proposed. By exploiting the properties of H-NOMA precoding, a low-complexity sequential user pairing algorithm is consequently developed, to further improve the overall system performance. Both analytical and numerical results are provided to demonstrate the performance of the H-NOMA precoding through the average power consumption and outage probability, while conventional schemes, as dirty-paper coding and zero-forcing beamforming, are used as benchmarking.