| Authors |
A. Iwasa, C. Ben Naila, K. Kobayashi, H. Okada, M. Katayama |
| Title |
Experimental Evaluation of an Indoor Long Distance High Speed Imaging MIMO System |
| Authority |
IEEE Global Communications Conference (GLOBECOM) |
| Summary |
In a large-scale indoor environment such as an industrial one, a multiple-input-multiple-output optical wireless communication (MIMO-OWC) system represents a flexible and easy-to-deploy solution to achieve point-to-point long-distance and high-speed data transmission. The majority of imaging MIMO-OWC systems have mainly targeted high data rate communication over short distances, not exceeding 10 m. In this work, on the contrary, we focus on longer-distance links providing high- speed transmission data rate. For this purpose, we propose an imaging MIMO-OWC system that features an improved optical modulator array with a one-dimensional element arrangement, and a new imaging receiver using long focal length lenses placed in front of the receiving photo-detector array. The performance of the proposed system is then experimentally evaluated. The obtained results show that the measured MIMO channel matrices have sparse patterns, which means that the elements not corresponding to the emitted beams are nearly zero. We successfully demonstrate the transmission at a high data rate of 100 Mbps over a long distance of 50 m. This result surpasses the achieved distance corresponding to the conventional MIMO-OWC system using an independent optical system for each light-receiving element. Consequently, the experimental results confirm that our proposed system has the potential for higher speed with longer distances. |
| 年月 |
2020年12月 |
| DOI/Handle |
DOI:10.1109/GLOBECOM42002.2020.9322574
|
| 開催場所 |
Taipei, Taiwan |
| 研究テーマ |
可視光通信／光無線通信
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
