Cloud Computing

Mobile Cloud Computing:

Mobile cloud computing is a model in which mobile applications are built, powered and hosted using cloud computing technology. Mobile devices with their limited resources will be accessing a wide variety of these cloud-based services such as video/audio streaming and online gaming. In order to improve the performance of this model, cloud-based services need to become aware of the movement of mobile devices and to be launched closer to the demand. Such a requirement becomes achievable through virtual machine live migration , a feature that is currently supported in all virtualization platforms. Virtual machine live migration is widely performed in the data centres of the Cloud, for the purposes of load balance, reliability, availability, hardware maintenance and system upgrade. It entails moving all the state information of the virtual machine being migrated, including memory state, network state and storage state, from one physical server to another within the same data center or across different data centers. The security aspect of live migration has not been fully addressed yet. Some proposals rely on trusted third-parties for generating and producing the security parameters. Others assume the presence of pre-shared security parameters between the source and destination cloud providers