NDLI: Scheduling Algorithm of Update Transactions and Quality of Service Management Based on Derived Data in Real-Time and Mobile Database Systems

Content Provider	IEEE Xplore Digital Library
Author	Li Guohui Xiang Jun Yang Bing Chen Hui
Copyright Year	2007
Description	Author affiliation: Huazhong Univ. of Sci. & Technol., Wuhan (Li Guohui; Xiang Jun; Yang Bing; Chen Hui)
Abstract	The demand on mobile and real-time database application and service in distributed environment is becoming increasingly extensive, since the workload cannot be precisely predicted so that they can become overloaded possibly. Low bandwidth in mobile environment will lead to aborting or restarting for transactions because of competing for the limited system resources severely. In this paper, we propose a novel performance metric for example deadline miss ratio of transactions and data freshness based on the relationship of data items in the DAG (directed acyclic graph) to ensure the QoS (quality of service ) in mobile and real-time database systems. Feedback control architecture and MODDFT (modifying on-demand breath-first traversal algorithm) are proposed in our system to decrease miss ratio of transactions and improve data freshness. The MODDFT algorithm can guarantee the QoS performance will not be beyond the reference by database administrator through simulation experiments.
Starting Page	131
Ending Page	138
File Size	157366
Page Count	8
File Format	PDF
ISBN	9780769530369
DOI	10.1109/FCST.2007.26
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Measurement Distributed databases Quality of service Bandwidth Database systems Transaction databases Feedback control Scheduling algorithm Quality management
Content Type	Text
Resource Type	Article

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