| Autor: |
Donghyun Kang |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Aerospace, Vol 11, Iss 1, p 47 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2226-4310 |
| DOI: |
10.3390/aerospace11010047 |
| Popis: |
Despite the technological achievements of unmanned aerial vehicles (UAVs) growing in academia and industry, there is a lack of studies on the storage devices in UAVs. However, this is an important aspect because the storage devices in UAVs have a limited lifespan and performance and are rarely replaced due to a system-on-chip architecture. In this paper, we study how UAVs impact the lifespan and performance of the underlying storage device while capturing images during overflight. We also propose a new lifespan and performance-saving mechanism, called Delay-D, which is designed at the kernel level to efficiently utilize the features of NAND flash-based storage devices. To confirm the effectiveness of Delay-D, we implement a simulator that replays realistic write patterns on UAVs and evaluate quantitative experiments in two different experimental environments. In our evaluation, Delay-D demonstrates the dramatic extension possibility of the lifespan by reducing the number of extra writes inside the storage device and improving the overall performance by up to 2.1× on the commercial NVMe SSD. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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