A Self-Adaptive Hardware/Software System Architecture for Ubiquitous Computing Applications

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• 作者：Chun-Hsian Huang ; Jih-Sheng Shen ; Pao-Ann Hsiung
• 关键词：Hardware/Software Adaptation ; Ubiquitous Computing Applications
• 刊名：Lecture Notes in Computer Science
• 出版年：2010
• 出版时间：2010
• 年：2010
• 卷：6406
• 期：1
• 页码：382-396
• 全文大小：781.2 KB

文摘

Within ubiquitous computing environments, services and devices can be dynamically adapted to changing conditions, and thus adaptivity becomes a key requirement in providing possibly better system performance. Most existing ubiquitous computing systems either support only software adaptation or manage reconfigurable hardware functions as conventional hardware devices. As a result, system adaptation and performance improvement are still restricted. To provide more robust system adaptation, we propose a self-adaptive hardware/software system architecture (SAHA) that consists of service suppliers, a hardware adapter, a system manager, an observer, and a reconfigurable hardware architecture. Further, SAHA supports both hardware preemption and hardware virtualization within a complete self-aware system adaptation mechanism such that the utilization of system resources is enhanced and better performance is provided for ubiquitous computing applications. Experiments with a ubiquitous computing service for information encryption demonstrate that SAHA can reduce the turnaround time by at least 11.9 % of that required by using the conventional method.