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Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices
นักวิจัย : Yang, Ming , Wen, Yonggang , Cai, Jianfei , Foh, Chuan Heng
คำค้น : DRNTU::Engineering::Computer science and engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : http://hdl.handle.net/10220/13427 , http://dx.doi.org/10.1109/ICC.2012.6364132
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This paper investigates the problem of minimizing energy consumption for real-time video encoding on mobile devices, by dynamically configuring the clock frequency in the CPU via the dynamic voltage scaling (DVS) technology. The problem can be formulated as a constrained optimization problem, whose objective is to minimize the total energy consumption of encoding video contents while respecting a real-time delay constraint. Under a probabilistic workload model, we obtain closed-form solutions for both the optimal clock frequency configuration and the resulted minimum energy. We also compare the optimal solution with a brute force flat frequency configuration. Numerical results indicate that our derived optimal solution outperforms the brute-force approach significantly. Moreover, we apply the optimal solution for real-time H.264/AVC video encoding application. Our numerical results suggest that an energy saving of 10%-20% can be achieved, compared to the flat clock frequency scheduling.

บรรณานุกรม :
Yang, Ming , Wen, Yonggang , Cai, Jianfei , Foh, Chuan Heng . (2555). Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Ming , Wen, Yonggang , Cai, Jianfei , Foh, Chuan Heng . 2555. "Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Ming , Wen, Yonggang , Cai, Jianfei , Foh, Chuan Heng . "Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Yang, Ming , Wen, Yonggang , Cai, Jianfei , Foh, Chuan Heng . Energy minimization via dynamic voltage scaling for real-time video encoding on mobile devices. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.