Framework for Energy-Aware Lossless Compression in Mobile Services: The Case of E-Mail
2010 IEEE International Conference on Communications
Energy consumption caused by wireless transmission poses a big challenge to the battery lifetime of mobile devices. While the potential of using lossless compression for saving energy has been long acknowledged, no general solution has been proposed for applying lossless compression to energy adaptation for mobile services. We propose a proxy-based energy adaptation framework, in which the data to be transmitted is losslessly compressed on a proxy server according to context-aware policies. The
... context includes factors relevant to computational and communication cost, as well as the user's preferences. We showcase a context-aware policy which aims at minimizing clientside energy consumption caused by transmission and decompression. Using our framework, we implement an energyaware mobile e-mail service, and present power measurement results that show significant energy savings. Keywords-Energy-aware; Lossless compression;Mobile Service I. Taking into account the compression ratios of different data types, and the client contexts such as the energy utility of decompression when estimating the computational cost. Taking network conditions in terms of network throughput and network signal-to-noise-ratio (SNR) into account when estimating the communication cost. The remainder of this paper is structured as follows. We review the related work in Section 2. Section 3 illustrates the system model of our energy-aware lossless compression framework, and explains the selection of data compression This work was supported by TEKES as part of the Future Internet program of TIVIT (Finnish Strategic Centre for Science, Technology and Innovation in the field of ICT).