[연구] 이진규 교수 연구실(실시간 컴퓨팅 연구실, RTCL@SKKU) ACM Mobisys 2023 논문 게재 승인
- 소프트웨어융합대학
- 조회수1954
- 2023-06-07
실시간 컴퓨팅 연구실(지도교수: 이진규)에서 작성한 논문이 ACM Mobisys 2023 (the 21st ACM International Conference on Mobile Systems, Applications, and Services)에 게재 승인되었습니다.
ACM Mobisys는 매년 40편 내외의 논문만이 발표되는 Mobile System 분야의 최우수 국제 학술대회이며, 올해는 2023년 6월 18일~22일 핀란드 헬싱키에서 총 41편의 논문이 발표될 예정입니다.
ACM Mobisys 2023 홈페이지 https://www.sigmobile.org/mobisys/2023/
실시간 컴퓨팅 연구실 홈페이지 https://rtclskku.github.io/website/
- 논문제목: MixMax: Leveraging Heterogeneous Batteries to Alleviate Low Battery Experience for Mobile Users
- RTCL@SKKU 연구실 저자: 곽재헌 석사졸업생(제1저자), 이진규 교수(공동 교신저자)
- 연구주제: 서로 다른 종류의 배터리를 활용하여 주어진 부피/무게 등의 제약하에서 기존 모바일 배터리 성능을 뛰어 넘도록 하는 시스템 설계 및 전력사용 스케줄링 기법
- 공동연구 기관: KAIST, 숭실대
- Teaser: https://youtu.be/LPXcpKlQxa0
- Abstract: Despite the physical advance of an existing single-cell battery system, mobile users are still suffering from low battery anxiety. With a careful analysis of users’ battery usage behavior collected for 19,855 hours, we propose a heterogeneous battery system, MixMax, consisting of three complementary battery types tailored to minimizing the low battery time. While composing a heterogeneous battery system opens up a chance to simultaneously improve the capacity and the charging speed, one must face non-trivial challenges to determine the ratio of enclosed batteries and charge/discharge policies during the run-time. They are highly dependent on each other, which entails almost infinite candidates for the choice. MixMax gracefully unwinds the dependencies as it formulates the decision-making problem into an optimization problem and decomposes it into multiple sub-problems instead. To evaluate MixMax, we fabricate coin-cell batteries and experiment with them to model an accurate battery emulator which sophisticatedly reproduces the dynamics of battery systems. Our experimental results demonstrate that MixMax can reduce the low battery time by up to 24.6% without compromising capacity, volume, weight, and more importantly, users’ battery usage behavior. In addition, we prototype MixMax on a smartphone, presenting the practicality of MixMax on mobile systems.
이진규 | jinkyu.lee@skku.edu | 실시간컴퓨팅 Lab. | https://rtclskku.github.io/website/