Research Based CPN On Mobile Cloud Computing Of Task Migration Validation And Simulation

In mobile cloud computing environment,the location of the mobile devices in the network always change during the users moving,and the current state of mobile devices is also changing in real time,to ensure continuity of operation of the processing task becomes an extremely important research topic of mobile computing.Many Scholars have been investigated pervasive mobile cloud computing or cloud computing task migration,their methods can solve some certain problems in a particular area,with some validity,but all of them has a defect at the same time,there is no one analyze these topics: when to start the task migration,the integrity of task migration process,the reliability and stability of mobile cloud platform after task migration.In this paper,we will expand semantic of the colored petri net and create two task migration rules.The first migration rule is no integration of context information.The second task migration rule is the integration of context information.In this paper,we will create two task migration models which are cloud-based platform that is OSGI Pervasive Cloud.CCPN that is expand the semantic of CPN,it realizes the description of context and their relationships,which are the foundation of the project.The key issue includes: how to get CPU usage,Memory usage rate and network bandwidth of the system,and then convert them to context,which will be described with CCPN.We simulate and verify two models of task migration under the OSGI mobile cloud platform.We use the data from the simulation form a complete evaluation system about tasks migration,including: task migration accessibility,integrity of task migration process,the reliability and stability of mobile cloud system after the success of task migration.In addition,we discussed the issue of energy consumption of the two task migration models.In this paper,we will model and analyze the task migration from the perspective of software engineering.Our method not only can do a detailed analysis of accessibility and reliability about task migration,but also can form a complete evaluation system,which can has good versatility.