Abstract
Offloading computation from mobile to remote cloud servers is a promising way to reduce energy consumption and improve the performance of mobile applications. However, a great challenge arises as automatic integration of powerful computing resources in remote cloud infrastructure and the portability of mobile devices. In this paper, we develop a Java annotation-based offloading framework, called MCAF, for android mobile devices. This framework is designed and committed to simplifying the development of android applications enabled with the offload capability. All the developers need to do is to import the SDK library of our MCAF and annotate the computation-intensive methods. MCAF can automatically extract the annotated source code and generate the code that will be run in the Cloud. Moreover, the codes of making the offloading decisions are automatically inserted into the original source code. We also conducted the real experiments to show the applicability of our MCAF.
Highlights
Advances in the portability and capability of mobile devices such as smartphones, together with increasingly faster and widespread wireless networks, a large number of mobile APPs such as shopping, gaming, information management, and so on have been made
Mobile Cloud Annotation Framework (MCAF) aims to minimize the effort of conducting the offload. e programmers who employ MCAF do not need to implement the code running on the Cloud but write the source code as normal for the mobile device and add the Java annotations that specify the code offloading
MCAF Modules. e Mobile Cloud Annotation Framework (MCAF) consists of the following modules: (1) Annotation Handler: extracting all information related to the annotated methods; (2) Cloud Proxy: realizing the communications between the local mobile device and the Cloud; (3) Offloading Decider: implementing the offloading strategies; and (4) Code Rewriter: automatically wrapping up the source codes of the extracted method as stand-alone Java programs and compiling them as classes files
Summary
Advances in the portability and capability of mobile devices such as smartphones, together with increasingly faster and widespread wireless networks, a large number of mobile APPs such as shopping, gaming, information management, and so on have been made. E programmers who employ MCAF do not need to implement the code running on the Cloud but write the source code as normal for the mobile device and add the Java annotations that specify the code offloading. E extracted code is encapsulated automatically as a stand-alone Java program and is offloaded to the Cloud when the conditions are met Another major difference between MCAF and most existing frameworks is that MCAF offloads the task at the granularity of the method level. MCAF aims to reduce the efforts of the framework developers and the programmers in realizing the offloading capability in mobile Apps. MCAF can make use of the existing security measure in the literature (such as the one presented in [4]) to ensure confidentiality and the integrity.
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