Feasibility Study of Optical Wireless Technology in Data Center Network

被引：4

作者：

Zhang, Shaojuan ^{[1
]}

Xue, Xuwei ^{[1
]}

Yan, Fulong ^{[1
]}

Pan, Bitao ^{[1
]}

Guo, Xiaotao ^{[1
]}

Mekonnen, Ketema ^{[1
]}

Tangdiongga, Eduward ^{[1
]}

Calabretta, Nicola ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Elect Engn, NL-5612 AZ Eindhoven, Netherlands

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2021年 / 33卷 / 15期

关键词：

Optical transmitters; Gratings; Collimators; Optical fibers; Optical fiber communication; Wireless communication; Adaptive optics; Data center architecture; free-space optical communication; ARCHITECTURE; SYSTEM;

D O I：

10.1109/LPT.2021.3095163

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the scalability and performance of a novel optical wireless data center network (OW-DCN) based on passive diffractive optics and fast tunable transmitters. The proposed OW-DCN architecture consists of two parallel inter- and intra- cluster networks to implement a flat communication between the top of racks within the DCN with at most two hops. The proposed DCN operation, the transmission performance and the scalability have been experimentally demonstrated and assessed for different modulation formats (NRZ-OOK and PAM4) with different sizes of DCN. A DCN with 8 x 8 racks shows 20Gbit/s OOK error free transmission with a power penalty of only 1dB compared to the B2B performance. For a 16 x 16 racks DCN, experiment indicates 16Gbit/s PAM4 transmission at FEC-limit of BER < 2 x 10(-3). Moreover, scalability investigations of the proposed DCN architecture with optimized passive optics indicate that a 32 x 32 racks DCN with spectral band around 1 nm per link is feasible.

引用

页码：773 / 776

页数：4

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