IEMEK Journal of Embedded Systems and Applications (대한임베디드공학회논문지)

Institute of Embedded Engineering of Korea (대한임베디드공학회)
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An Efficient Software Update Technique with Code-Banking & Delta-Image for Wireless Sensor Networks

무선 센서 네트워크상에서 코드뱅킹 및 델타이미지 기반의 효율적인 센서노드 소프트웨어 업데이트 기법

  • Received : 2009.01.14
  • Accepted : 2009.09.04
  • Published : 2009.09.30
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Abstract

Software update has been regarded as one of fundamental functions in wireless sensor networks. It can disseminate a delta-image between a current software image operating on a sensor node and its new image in order to reduce an update image(transmission data) size, resultantly saving energy. In addition, code-banking capability of micro-controllers can decrease the update image size. In order to maximize the efficiency of the software update, the proposed scheme exploits both the delta-image and the code-banking at the same time. Besides, it additionally delivers a recovery delta-image to properly handle abnormal conditions, such as message corruptions and unexpected power-off during the update.

Keywords

References

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