Effective Dynamic Thermal Management for MPEG-4 decoding

Abstract

This paper proposes Dynamic Thermal Management (DTM) based on a dynamic voltage and frequency scaling (DVFS

Hybrid dynamic thermal management based on statistical characteristics of multimedia applications

“…However, due to the nature of multimedia applications with different frame sizes and types in data, it is not easy to match their QoS requirements while temperature is under control. There have been handful studies on temperature management for multimedia applications [12,10,7,8,13,15]. However, we found out that these schemes tend to overestimate or underestimate multimedia application requirements, which could result in false, inevitably leading to high operation temperature or performance degradation.…”

“…In order to evaluate the performance of the proposed scheme, we exploit three major codecs, namely MPEG-4, H.264/AVC and H.264/AVC streaming. Our results show that HDTM lowers the overall temperature by 15• C and the peak temperature by 20• C , while maintaining frame drop ratio under 0.2% compared to previous thermal management schemes such as feedback control DTM [8], Frame-based DTM [5] and GOP-based DTM [15]. …”

“…The dynamic thermal managements in multimedia systems can be classified into proactive methods [13,10,7] and reactive methods [12,8,15,5]. In proactive methods, J. Pouwelse et al estimated the decoding time per frames based on the offline information, such as decoding time and frame size [10].…”

“…• C , while maintaining frame drop ratio under 0.2% compared to previous thermal management schemes such as feedback control DTM [8], Frame-based DTM [5] and GOP-based DTM [15].…”

“…Compared to feedback control DTM [8], Frame-based DTM [5] and GOP-based DTM [15], HDTM lowers average temperature by 15…”