Towards update-conscious compilation for energy-efficient code dissemination in WSNs

Author:

Li Weijia1,Zhang Youtao1,Yang Jun1,Zheng Jiang1

Affiliation:

1. University of Pittsburgh, Pittsburgh, PA

Abstract

Postdeployment code dissemination in wireless sensor networks (WSN) is challenging, as the code has to be transmitted via energy-expensive wireless communication. In this article, we propose novel update-conscious compilation (UCC) techniques to achieve energy efficiency. By integrating the compilation decisions in generating the old binary, an update-conscious compiler strives to match the old decisions, which improves the binary code similarity, reduces the amount of transmitted data to remote sensors, and thus, consumes less energy. In this article, we develop update-conscious register allocation and data layout algorithms. Our experimental results show great improvements over the traditional, update-oblivious approaches.

Funder

Division of Computing and Communication Foundations

Publisher

Association for Computing Machinery (ACM)

Subject

Hardware and Architecture,Information Systems,Software

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