Index Modulation-Based Flexible Non-Orthogonal Multiple Access

被引：33
|
作者：
Arslan, Emre [1 ]
Dogukan, Ali Tugberk [1 ]
Basar, Ertugrul [1 ]
机构：
[1] Koc Univ, Dept Elect & Elect Engn, Commun Res & Innovat Lab, TR-34450 Istanbul, Turkey
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 11期
关键词：
NOMA; OFDM; Silicon carbide; Indexes; Interference; Modulation; Resource management; 5G; 6G; index modulation (IM); Internet-of-Things (IoT); waveform design; multiple access; SPATIAL MODULATION; NOMA; DOWNLINK;
D O I：
10.1109/LWC.2020.3009100
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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 NOMA-OFDM, 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.
引用
收藏
页码：1942 / 1946
页数：5
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