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Snooze: Energy Management in 802.11n WLANs (2011)
| Venue: | In Proc. of ACM CoNEXT |
| Citations: | 4 - 0 self |
BibTeX
@INPROCEEDINGS{Jang11snooze:energy,
author = {Ki-young Jang and Shuai Hao and Anmol Sheth and Ramesh Govindan},
title = {Snooze: Energy Management in 802.11n WLANs},
booktitle = {In Proc. of ACM CoNEXT},
year = {2011}
}
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Abstract
Increasingly, mobile devices equipped with 802.11n inter-faces are being used for a wide variety of applications in-cluding bandwidth-intensive HD video streaming. Recent work has shown that 802.11n interfaces are power-hungry, so energy management is an important challenge. 802.11n implementations have additional power states relative to ear-lier generations of 802.11 technology, so energy manage-ment challenges for 802.11n are qualitatively different com-pared to that faced by prior work. In this paper, we de-scribe the design and implementation of Snooze, an energy management technique for 802.11n which uses two novel and inter-dependent mechanisms: client micro-sleeps and antenna configuration management. In Snooze, the AP mon-itors traffic on the WLAN and directs client sleep times and durations as well as antenna configurations, without signifi-cantly affecting throughput or delay. Snooze achieves 30~85% energy-savings over CAM across workloads ranging from VoIP and video streaming to file downloads and chats.
Keyphrases
energy management prior work configuration management additional power state video streaming wide variety antenna configuration ear-lier generation mobile device energy manage-ment challenge client sleep time inter-dependent mechanism energy management technique important challenge client micro-sleeps ap mon-itors traffic recent work
