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作者机构:Faculty of Computer Science and TechnologyHuazhong University of Science and Technology Wuhan Design Institute of Architecture
出 版 物:《Journal of Donghua University(English Edition)》 (东华大学学报(英文版))
年 卷 期:2008年第25卷第1期
页 面:24-29页
核心收录:
学科分类:08[工学] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:National Natural Science Foundation of China under Grant No60073045 the National Defense Pre-Research Foundation of China under Grant No.00J15.3.3.J W529
主 题:real-time database transaction model application collaboration time consistency wireless sensor networks
摘 要:The application collaboration was addressed to provide energy-efficient data services for distributed sensing applications to collaboratively interacting to achieve a desired global objective not detectable by any single cluster. An epoch-based transaction model was proposed by using the concept of sphere of control (SoC), and a collaborative sensing application can be dynamically formed as a nested architecture composed of time-synchronized applications. By loosening the rigid constraints of ACID to adapt the requirements of sensor networks, the submission, rollback and consistency rules ware educed and a two-phrase submission protocol was designed. Finally, it was illustrated that the model is capable of providing an adaptive formal template for sensing application collaboration. Our performance evaluations show that by applying the two-phrase submission protocol, we can significantly improve the number of reported answers and response time, raise resource utilization, and reduce the energy cansumption and data loss.