Research on Code Migration Framework for Mobile Computing

More mobile users access to cloud-based services via wireless network recently, however connections between mobile device and cloud are unreliable as wireless network is unstable and dead spots won´t completely disappear. On the other hand, mobile devices are growing rapidly with faster computing power and longer battery time. Code component migration between the mobile client and the cloud is proposed to guarantee service performance and make full use of client resources. First, enterprise task, resource and service are extracted and modeled for building task components. Then business processes are described by Markov chains and Markov decision processes are used for migration strategy. Next runtime environment is realized in browser with the help of HTML5. Finally, a case study is implemented and the result shows that this model is effective and useful in improving cloud service performance in the environment of varying connectivity properties.