利用面向導向程式設計卸載行動計算到雲端

Abstract

近幾年來，智慧型手機如iPhone和Android的崛起，大大的改變了人類的生活。尤其是線上應用程式商店的出現，更使得手機上各式各樣的應用程式如雨後春筍般的冒出。再加上行動網路如Wi-Fi和3G的進步，人們無時無刻都可以利用手上的智慧型手機上網，不論你在公車上、捷運上都可以輕易的存取雲端的應用和資料。在這篇論文裡，我們藉由面向導向程式設計開發了一種新的機制讓手機上的運算可以很輕鬆的被卸載到雲端。在我們開發出來的機制裡，原本的手機程式碼不需要被改寫，只需重新編譯過後變可以擁有運算卸載的新功能。有了這個新的機制，我們可以很容易的把現有的Android應用程式裡比較耗資源的函式送到雲端伺服器上去計算，這樣不僅能讓應用程式的效能表現更好，也能讓手機更省電，延長電池的使用，得到更好的使用者經驗。

In recent years, smartphones such as iPhone and Android phones have changed the way people live, which is evident from the rapid growth in their market shares and the number of applications being developed and released each day. 3G and Wi-Fi technologies provide the ubiquitous connectivity that enables people to easily access cloud from everywhere via their smartphones. In this thesis, we develop a new mechanism that allows applications to o oad part of the computation to the cloud. This mechanism harnesses the power of Aspect-Oriented Programming (AOP), in which the origin source code need not be modi ed; yet new functionalities can be added using additional aspects. By using this mechanism, mobile applications automatically o oad part of the execution onto the cloud to get better performance, to improve energy-e ciency and to extend battery life.