サテライトコンピューティングシステムの信頼性と高性能化

2022 Fiscal Year Annual Research Report

• Project/Area Number: 21F21376
• Research Institution: Waseda University
• Host Researcher: 木村 晋二 早稲田大学, 理工学術院(情報生産システム研究科・センター), 教授 (20183303)
• Foreign Research Fellow: MEYER MICHAEL 早稲田大学, 理工学術院, 外国人特別研究員
• Project Period (FY): 2021-09-28 – 2023-03-31
• Keywords: Photonic Network / Network-on-Chip

Outline of Annual Research Achievements

The Photonic Networks-on-Chip has been studied especially on reliable routing algorithm. Photonic Networks-on-Chip are inherently more resilient to alpha particles because of using photons for communication but suffer from other forms of faults such as thermal variation. In order to control faults by the thermal variation, the microring resonators are fabricated with a flattened coil that can heat up the microring resonators. The strain-based calculation can be improved by improving both sub aspects of the algorithm. Instead of using a threshold of failed microring resonators, a performance factor is calculated based on every possible combinations of failed microring resonators in the individual switch. This way, there is no guessing whether a message can make it through the switch if two microring resonators in the same location have failed. The second point of improvement is to skip the power-based temperature estimation and replace it by separating the network into segments of single nodes and measuring the temperature of each segment. The resulting publication is almost ready for submission. In the future, the control method might be applied to advanced network such as satellite networks.

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。