项目名称: 休假排队系统驱动流模型的理论,优化及应用
项目编号: No.11201408
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 数理科学和化学
项目作者: 徐秀丽
作者单位: 燕山大学
项目金额: 22万元
中文摘要: 近些年,经典排队系统驱动的流模型的研究,已取得初步成果,并在通信网络、计算机系统、环境工程、先进制造、交通、金融等领域得到成功地应用。然而,由于实时系统的高度复杂性,利用休假排队驱动的流模型为系统建模更符合实际情况。但各种服务员休假排队驱动的流模型至今很少有人研究。本项目致力于休假排队驱动流模型的分析,在各种休假策略和净流入率结构下,导出流的平衡条件和稳态指标;发展流模型的矩阵分析方法和新技巧,在更广泛和更坚实的基础上,推进当代流模型的理论分析。各种休假策略的引入,将对流入率、流出率的优化设计与动态控制提供极大的灵活性,使之适应更广泛和更复杂的应用背景。因此,本项目研究成果不仅实质性地扩展和深化了当代流模型的理论研究,也为流模型在各种高新技术领域,特别是在通信系统中信号传输中的成功应用,提供新的理论基础和分析工具。
中文关键词: 流模型;随机环境;净输入率;LT变换;平均库存量
英文摘要: In recent years,the study of the fluid model driven by the claasical queueing system has made much achievments and successfully applied to various fields, such as, communication networks, computer systems, environmental engineering,advanced manufacturing,transportation and financial circles. Owing to the complexity of realtime systems,it is fitter to use the fluid model driven by the vacation queue to model the practical cases. However, only a few literatures covered the fluid model driven by the queue with vacation.This project devoted itself to study the fluid model driven by the vacation queue and to derive the stationary condition and stationary indices under various vacation policies and structures of net input rate.It is to develop the matrix analysis method and technique in order to promote the theoretical analysis of fluid queue.The diversified vacation policies provide much more flexibility for the optimization design and dynamic control of the input rate and the output rate,and make the fluid flow model driven by the vacation queue to apply to more complex and extensive practical background. Therefore, the research results here will not only expand and deepen the theoretical study but also provide new theoretical foundation and analysis tool for the application of fluid model in multifarious technique
英文关键词: Fluid model;Stochastic environment;Net input rate;Laplace transform;Expected buffer content