Scheduling for constantly-evolving data broadcasting in asymmetric communication networks  

非对称通信网络中易变数据的广播调度(英文)

作　　者：许华杰 李国徽 

机构地区：[1]College of Computer Science and Technology, Huazhong University of Science and Technology

出　　处：《Journal of Shanghai University(English Edition)》2008年第6期508-514,共7页上海大学学报（英文版）

基　　金：supported by the National High-Technology Research and Development Program of China (Grant No.2007AA01Z309);the National Natural Science Foundation of China (Grant No.60203017)

摘　　要：Recent advances in wireless sensor networks and GPS have made constantly-evolving data a new type of data which bring a new challenge to traditional data processing methods. Data broadcasting is an effective means for data dissemination in asymmetric communication networks, such as wireless networks. In this paper, definition of the mean uncertainty ratio of data is presented and a broadcasting scheme is proposed for constantly-evolving data dissemination. Simulation results show that the scheme can reduce the uncertainty of the broadcasted constantly-evolving data effectively at the cost of minor increase in data access time, in the case of no transmission error, transmission errors present, and multiple broadcast channels. As a result it benefits the qualities of the query results based on the data.Recent advances in wireless sensor networks and GPS have made constantly-evolving data a new type of data which bring a new challenge to traditional data processing methods. Data broadcasting is an effective means for data dissemination in asymmetric communication networks, such as wireless networks. In this paper, definition of the mean uncertainty ratio of data is presented and a broadcasting scheme is proposed for constantly-evolving data dissemination. Simulation results show that the scheme can reduce the uncertainty of the broadcasted constantly-evolving data effectively at the cost of minor increase in data access time, in the case of no transmission error, transmission errors present, and multiple broadcast channels. As a result it benefits the qualities of the query results based on the data.

关 键 词：symmetric communication networks constantly-evolving data BROADCASTING SCHEDULING 

分 类 号：TN915[电子电信—通信与信息系统]