Downlink Index Modulation aided NOMA for MIMO Transmission

被引：0

作者：

Kumar, M. Hemanta ^{[1
]}

Sharma, Sanjeev ^{[1
]}

Thottappan, M. ^{[1
]}

机构：

[1] IIT BHU, Elect Engn, Varanasi, Uttar Pradesh, India

来源：

2020 IEEE 3RD 5G WORLD FORUM (5GWF) | 2020年

关键词：

Index modulation; Non-orthogonal multiple access (NOMA); symbol error rate (SER); Successive interference cancellation (SIC); SPATIAL MODULATION; PERFORMANCE;

D O I：

10.1109/5gwf49715.2020.9221059

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Spatial modulation uses index modulation (IM)based transmission scheme to reduce transmitted power and radio-frequency (RF) chains in multiple antenna systems. In this paper, we propose IM and non-orthogonal multiple access (NOMA) based IM-NOMA system (I-NOMA) to support massive connectivity in a wireless network. In the proposed downlink I-NOMA, users are multiplexed using both the transmit antenna index and different power levels at base station. The symbol error rate (SER) and sum rate performances of the proposed I-NOMA are analyzed and compared with the IM-based orthogonal multiple access (OMA) system. Impact of various system parameters such as modulation order, transmit antennas, imperfect channel estimation are studied in I-NOMA. Results show that the proposed I-NOMA can yield better sum rate performances than the conventional IM-OMA with good SER and low complexity transceivers.

引用

页码：530 / 535

页数：6

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