On the Notion of Decoupling in Mobile Cloud Computing

Mobile cloud computing extends the existing facility of cloud computing paradigm to different mobile applications executing in mobile/portable devices of end users. It caters these applications with the support of existing cloud services, thereby helping them to overcome the inherent limitations of mobile/portable devices. However, existing cloud services in mobile cloud architecture get tightly coupled with these applications, which is highly undesirable in dynamic and unreliable mobile cloud computing. A new mobile cloud architecture, where interactions between mobile applications and existing cloud services are decoupled in nature, is proposed in this paper. Tuple space model is used for decoupling these interactions in proposed architecture, which improves flexibility and efficiency of mobile cloud computing. This paper also suggests an approach of formalizing proposed architecture in order to appropriately analyze its flexibility in decoupling mobile applications from their leased cloud services. Formalization is carried out using Mobile UNITY.