中文摘要：

随着移动互联网的飞速发展,移动终端的应用已经渗透到人们工作生活的方方面面.为了满足日益复杂的移动应用对移动终端的电池容量、计算能力、存储容量以及安全性提出的更高要求,移动云计算作为移动互联网和云计算结合的产物,近年来得到了快速发展,也催生出了众多新的信息服务和应用模式,得到了学术界和工业界的广泛关注.移动云计算继承了云计算的应用动态部署、资源可扩展、多用户共享以及多服务整合等优势,为解决移动终端资源受限问题提供了一种有效方式,但在用户动态移动、终端电量有限、非法访问及隐私泄漏等安全威胁日益严重的情况下,仍然面临诸多研究挑战.文中围绕这些挑战,介绍了计算迁移、基于移动云的位置服务、移动终端节能、数据安全与隐私保护等移动云计算技术的研究现状,进一步对移动云存储、微云、群智服务和移动云游戏等移动云计算的典型应用进行了深入分析,并从移动云计算功能增强、服务质量保障和安全可用性等3个方面,展望了移动云计算未来的发展趋势和研究方向.

英文摘要：

With the rapid development of mobile Internet, the applications of mobile devices have penetrated into all aspects of people’ s work and life. In order to meet the requirements of complex mobile applications for mobile devices,such as battery capacity,computing power storage capacity, security and privacy,mobile cloud computing as a combination of mobile Internet and cloud computing has been in a rapid development in recent years, brought out the new information service and application modes, which has attracted great attentions from both industry and academia. Mobile cloud computing inherits the advantages of cloud computing, such as dynamic deployment, resource scalability, multiple users sharing and multiple services integration. It provides an effective way to empower the resource shortage of mobile devices. However,the inherent problems such as dynamic mobility, limited battery capacity and security threats from unauthorized access and privacy breach introduce many new challenges to the research of mobile cloud computing. Firstly, based on the fundamental research problems in mobile cloud computing, we describe the research progress of this area, mainly including the computation migration technologies, cloud- based location service, energy-saving technologies for mobile device, data security and privacy protection Then we give an indepth analysis for the typical applications of mobile cloud computing such as mobile cloud storage, cloudlet, group intelligence service and mobile cloud gaming, and finally prospect the research trend from the aspects of function enhancement, quality of service assurance, security and availability.