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Fast dynamic execution offloading for efficient mobile cloud computing

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7 Author(s)
Seungjun Yang ; Dept. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea ; Yongin Kwon ; Yeongpil Cho ; Hayoon Yi
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In order to meet the increasing demand for high performance in smartphones, recent studies suggested mobile cloud computing techniques that aim to connect the phones to adjacent powerful cloud servers to throw their computational burden to the servers. These techniques often employ execution offloading schemes that migrate a process between machines during its execution. In execution offloading, code regions to be executed on the server are decided statically or dynamically based on the complex analysis on execution time and process state transfer time of every region. Expectedly, the transfer time is a deciding factor for the success of execution offloading. According to our analysis, it is dominated by the total size of heap objects transferred over the network. But previous work did not try hard to minimize this size. Thus in this paper, we introduce novel techniques based on compiler code analysis that effectively reduce the transferred data size by transferring only the essential heap objects. The experiments exhibit that the reduced size positively influences not only the transfer time itself but also the overall effectiveness of execution offloading, and ultimately, improves the performance of our mobile cloud computing significantly in terms of execution time and power consumption.

Published in:

Pervasive Computing and Communications (PerCom), 2013 IEEE International Conference on

Date of Conference:

18-22 March 2013