An Evaluation of Orbital Angular Momentum Multiplexing Technology

被引:33
作者
Lee, Doohwan [1 ]
Sasaki, Hirofumi [1 ]
Fukumoto, Hiroyuki [1 ]
Yagi, Yasunori [1 ]
Shimizu, Takashi [1 ]
机构
[1] NTT Corp, NTT Network Innovat Labs, 1-1 Hikarinooka, Yokosuka, Kanagawa 2390847, Japan
来源
APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 09期
关键词
orbital angular momentum multiplexing; OAM; OAM-MIMO; 28; GHz; uniform circular array; dielectric lens;
D O I
10.3390/app9091729
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper reports our investigation of wireless communication performance obtained using orbital angular momentum (OAM) multiplexing, from theoretical evaluation to experimental study. First, we show how we performed a basic theoretical study on wireless OAM multiplexing performance regarding modulation, demodulation, multiplexing, and demultiplexing. This provided a clear picture of the effects of mode attenuation and gave us insight into the potential and limitations of OAM wireless communications. Then, we expanded our study to experimental evaluation of a dielectric lens and end-to-end wireless transmission on 28 gigahertz frequency bands. To overcome the beam divergence of OAM multiplexing, we propose a combination of multi-input multi-output (MIMO) and OAM technology, named OAM-MIMO multiplexing. We achieved 45 Gbps (gigabits per second) throughput using OAM multiplexing with five OAM modes. We also experimentally demonstrated the effectiveness of the proposed OAM-MIMO multiplexing using a total of 11 OAM modes. Experimental OAM-MIMO multiplexing results reached a new milestone for point-to-point transmission rates when 100 Gbps was achieved at a 10-m transmission distance.
引用
收藏
页数:13
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