论文标题
基于索引调制的灵活性非正交多访问
Index Modulation-Based Flexible Non-Orthogonal Multiple Access
论文作者
论文摘要
非正交多访问（NOMA）被设想为未来通信系统的有效候选者。这封信提出了一种新型的正交频施加多路复用（OFDM），其基于索引调制（IM）的NOMA方案，称为OFDM-IM Noma，用于将来的多用户通信系统。受IM和经典OFDM-NOMA的启发，用户通过调整功率分配因子和子载波激活率来利用灵活性。我们的新计划使不同的服务用户可以更有效地共享现有的资源。结果表明，OFDM-IM NOMA可靠地通过调整其子载波激活率来可靠地支持同一资源的高数据速率用户。
Non-orthogonal multiple access (NOMA) is envisioned as an efficient candidate for future communication systems. This letter proposes a novel orthogonal frequency division multiplexing (OFDM) with index modulation (IM)-based NOMA scheme, called OFDM-IM NOMA, for future multi-user communication systems. Inspired by IM and classical OFDM-NOMA, users utilize flexibility by adjusting power allocation factors and subcarrier activation ratios. Our new scheme allows different service users to share available resources as in classical NOMA, more efficiently. It is shown that OFDM-IM NOMA reliably supports a high and low data rate user at the same resources by adjusting their subcarrier activation ratios.
