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학술지 Design, Implementation, and Evaluation of a QoS-Aware Real-Time Embedded Database
Cited 21 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
강우철, Sang Hyuk Son, John A. Stankovic
발행일
201201
출처
IEEE Transactions on Computers, v.61 no.1, pp.45-59
ISSN
0018-9340
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TC.2010.240
협약과제
10MS3900, 고신뢰 자율제어 SW를 위한 CPS(Cyber Physical Systems)핵심기술 개발, 박승민
초록
Quality-aware realtime Embedded DataBase (QeDB) is a database for data-intensive real-time applications running on embedded devices. Currently, databases for embedded systems are best effort, providing no guarantees on their timeliness and data freshness. Existing real-time database (RTDB) technology cannot be applied to these embedded databases since it hypothesizes that the main memory of a system is large enough to hold the entire database. This, however, might not be true in data-intensive real-time applications. QeDB uses a novel feedback control scheme to support QoS in such embedded systems without requiring all data to reside in main memory. In particular, our approach is based on simultaneous control of both I/O and CPU resources to guarantee the desired timeliness. Unlike existing work on feedback control of RTDB performance, we implement and evaluate the proposed scheme on a modern embedded device. The experimental results show that our approach supports the desired timeliness of transactions while still maintaining high data freshness compared to baseline approaches. © 2006 IEEE.
키워드
embedded database, feedback control, Multiple Input/Multiple Output (MIMO) control, QoS management, Real-time database, sensor data freshness, transaction tardiness
KSP 제안 키워드
Best Effort(BE), Control scheme, Embedded Databases, Embedded Devices, Embedded system, Feedback Control, QoS-aware, Quality-Aware, Real-Time Database, Real-time application, data freshness