无线网络中QoS感知的多粒度服务组合研究

项目名称： 无线网络中QoS感知的多粒度服务组合研究

项目编号： No.61303043

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 罗元盛

作者单位： 长沙理工大学

项目金额： 23万元

中文摘要： 随着无线网络通信技术的发展，对无线网络中应用服务的需求越来越广泛。服务组合作为一种资源重用、整合与共享以及快速提供增值应用服务的技术，其研究热点从传统的有线网络领域向无线网络领域发展是一种自然趋势。除了满足功能性需求，服务组合还要为用户和具体应用提供服务质量(QoS)保证。本项目研究无线网络环境中QoS 感知的服务组合问题。拟将无线网络环境分为半静态和动态两种类别。将对半静态无线网络中组合服务的划分问题以及并行分支服务组合算法进行研究，从而在移动设备能量受限的情况下提高服务组合的性能，避免无线瓶颈区域对服务组合性能的干扰，采用分层多粒度服务组合模型与算法，综合考虑无线网络中服务的各种QoS 标准，资源限制和应用需求，以得到优化的服务组合结果。通过研究分阶段多步的服务组合模型，为动态无线网络中服务组合面临的网络环境和QoS 动态多变的问题提供解决思路。研究结果将采用仿真和原型系统进行验证。

中文关键词： 无线虚拟网络；虚拟网络运营商；云无线接入网络；数据服务；服务质量

英文摘要： Characters)：In recent years, the remarkable advance of wireless networks and communications bring the requirements on applications in wireless networks into an extend area. The integration of different kinds of wireless mobile networks is also emerging. Mobile networks and devices supporting multiple air interfaces are regarded as one of the most important features for future mobile systems. The success of these mobile systems lies in their ability to provide users with cost-effective services that have the potential to run anywhere,anytime and on any device without(or with little) user attention. Recent popularity of smart phones and pads also adds more demand on providing rich application services on mobile handsets. One important and effective enabling technique is service composition. Service composition is treated as a promising technology in resource reusing, integration, sharing and providing value-added application services in an agile way. It is naturally for the research hotspot of service composition to move into the wireless networks from traditional wired networks. When conducting service composition, certain constraints or Quality of Service(QoS) have to be considered, namely, QoS-aware service composition. This usually refers to the problem of composing a set of appropriate services into a richer

英文关键词： wireless virtual networks；virtual network operator；cloud radio access networks；data service；quality of service