Journal of Internet Computing and Services (인터넷정보학회논문지)

Korean Society for Internet Information (한국인터넷정보학회)
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Pratical Offloading Methods and Cost Models for Mobile Cloud Computing

모바일 클라우드 컴퓨팅을 위한 실용적인 오프로딩 기법 및 비용 모델

  • Park, Min Gyun (Department of Computer Science, Soongsil University) ;
  • Zhe, Piao Zhen (Department of Computer Science, Soongsil University) ;
  • La, Hyun Jung (Department of Computer Science, Soongsil University) ;
  • Kim, Soo Dong (Department of Computer Science, Soongsil University)
  • Received : 2013.01.22
  • Accepted : 2013.02.18
  • Published : 2013.04.30
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Abstract

As a way of augmenting constrained resources of mobile devices such as CPU and memory, many works on mobile cloud computing (MCC), where mobile devices utilize remote resources of cloud services or PCs, /have been proposed. A typical approach to resolving resource problems of mobile nodes in MCC is to offload functional components to other resource-rich nodes. However, most of the current woks do not consider a characteristic of dynamically changed MCC environment and propose offloading mechanisms in a conceptual level. In this paper, in order to ensure performance of highly complex mobile applications, we propose four different types of offloading mechanisms which can be applied to diverse situations of MCC. And, the proposed offloading mechanisms are practically designed so that they can be implemented with current technologies. Moreover, we define cost models to derive the most sutilable situation of applying each offloading mechanism and prove the performance enhancement through offloadings in a quantitative manner.

제한된 모바일 디바이스의 자원을 해결하기 위해, 클라우드에 있는 서비스 또는 자원을 활용하는 모바일 클라우드 컴퓨팅(Mobile Cloud Computing, MCC) 연구가 활발히 진행되고 있다. MCC에서는 주로 기능 컴포넌트를 다른 노드로 오프로딩 (Offloading) 시킴으로써, 모바일 노드의 자원 문제를 해결하는 접근법을 주로 사용한다. 그러나, 현재 진행되고 있는 MCC에 대한 연구는 사전에 결정된 노드로 오프로딩 시키는 기법들이 주로 진행되고 있으며, 개념적인 수준에서 기법이 제시되고 있다. 본 논문에서는 복잡도가 높은 모바일 애플리케이션의 성능을 보장하기 위한 4가지 종류의 오프로딩 기법을 제안한다. 제시된 기법은 구현이 가능하도록 실용적인 수준으로 설계되며, 비용 모델을 제시하여 오프로딩을 통한 성능향상이 있음을 정량적으로 증명한다.

Keywords

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