Research on Single-join Processing Schemes in a Mobile Computing Environment

摘要：

Based on accurate cost estimate of operations,to select a suitable join query processing scheme can reduce both the amounts of data transmission and energy consumption of mobile units under a mobile computing environment. A new asymmetrical feature of energy consumption at a mobile unit is exploited. And a cost estimate method for join operation is presented.The costs of three single-join processing schemes are evaluated from data transmission and energy consumption, and the performances of them are comparatively analyzet. Then four realistic criteria are achieved to guide us to select the suitable processing scheme and minimize the cost of join operation. The experiments fully demonstrate that the estimate method and the criteria are reliable, and more applicable in comparison with the existing similar models and results.

关键词： Mobile Computing Asymmetry Query Processing Join Scheme Data Transmission Energy Consumption

作者: Min WANG Yu-quan ZHU Chun-fen ZHANG

作者单位: College of Computer Science and Telecommunication Engineering,Jiangsu University, Zhenjiang 212013, China

会议类型: 国际会议

会议名称: The International Colloquium on Onformation Fusion 2007(2007年国际信息融合研讨会)

会议地点: 西安

会议语种:英文

页码: 484-489

在线出版日期: 2007-08-22（万方平台首次上网日期，不代表论文的发表时间）