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Home ยป iCellular: Device-Customized Cellular Network Access on Commodity Smartphones
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iCellular: Device-Customized Cellular Network Access on Commodity Smartphones

Authors: 

Yuanjie Li, University of California, Los Angeles; Haotian Deng and Chunyi Peng, The Ohio State University; Zengwen Yuan, Guan-Hua Tu, Jiayao Li, and Songwu Lu, University of California, Los Angeles

Abstract: 

Exploiting multi-carrier access offers a promising direction to boost access quality in mobile networks. However, our experiments show that, the current practice does not achieve the full potential of this approach because it has not utilized fine-grained, cellular-specific domain knowledge. In this work, we propose iCellular, which exploits low-level cellular information at the device to improve multi-carrier access. Specifically, iCellular is proactive and adaptive in its multi-carrier selection by leveraging existing end-device mechanisms and standards-complaint procedures. It performs adaptive monitoring to ensure responsive selection and minimal service disruption, and enhances carrier selection with online learning and runtime decision fault prevention. It is readily deployable on smartphones without infrastructure/hardware modifications. We implement iCellular on commodity phones and harness the efforts of Project Fi to assess multi-carrier access over two US carriers: TMobile and Sprint. Our evaluation shows that, iCellular boosts the devices with up to 3.74x throughput improvement, 6.9x suspension reduction, and 1.9x latency decrement over the state-of-the-art selection scheme, with moderate CPU, memory and energy overheads.

Yuanjie Li, University of California, Los Angeles

Haotian Deng, The Ohio State University

Chunyi Peng, The Ohio State University

Zengwen Yuan, University of California, Los Angeles

Guan-Hua Tu, University of California, Los Angeles

Jiayao Li, University of California, Los Angeles

Songwu Lu, University of California, Los Angeles

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BibTeX
@inproceedings {194982,
author = {Yuanjie Li and Haotian Deng and Chunyi Peng and Zengwen Yuan and Guan-Hua Tu and Jiayao Li and Songwu Lu},
title = {{iCellular}: {Device-Customized} Cellular Network Access on Commodity Smartphones},
booktitle = {13th USENIX Symposium on Networked Systems Design and Implementation (NSDI 16)},
year = {2016},
isbn = {978-1-931971-29-4},
address = {Santa Clara, CA},
pages = {643--656},
url = {https://www.usenix.org/conference/nsdi16/technical-sessions/presentation/li-yuanjie},
publisher = {USENIX Association},
month = mar
}
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