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NAPman: network-assisted power management for wifi devices

Published: 15 June 2010 Publication History

Abstract

WiFi radios in smart-phones consume a significant amount of power when active. The 802.11 standard allows these devices to save power through an energy-conserving Power Save Mode (PSM). However, depending on the PSM implementation strategies used by the clients/Access Points (APs), we find competing background traffic results in one or more of the following negative consequences: a significant increase, up to 300%, in a client's energy consumption, a decrease in wireless network capacity due to unnecessary retransmissions, and unfairness.
In this paper, we propose NAPman: Network-Assisted Power Management for WiFi devices that addresses the above issues. NAPman leverages AP virtualization and a new energy-aware fair scheduling algorithm to minimize client energy consumption and unnecessary retransmissions, while ensuring fairness among competing traffic. NAPman is incrementally deployable via software updates to the AP and does not require any changes to the 802.11 protocol or the mobile clients. Our prototype implementation improves the energy savings on a smart-phone by up to 70% under varied settings of background traffic, while ensuring fairness.

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  • (2022)Developing A New Scheduling Algorithm for Wi-Fi 6 Technology Based on Machine LearningUluslararası Muhendislik Arastirma ve Gelistirme Dergisi10.29137/umagd.107590314:1(322-337)Online publication date: 31-Jan-2022
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cover image ACM Conferences
MobiSys '10: Proceedings of the 8th international conference on Mobile systems, applications, and services
June 2010
382 pages
ISBN:9781605589855
DOI:10.1145/1814433
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 15 June 2010

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Author Tags

  1. 802.11
  2. access points (APs)
  3. power save mode (PSM)
  4. scheduling
  5. smart-phones
  6. wireless local area networks (WLANSs)

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Cited By

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  • (2025)MILD: Minimizing Idle Listening Energy Consumption via Down-Clocking for Energy-Efficient Wi-Fi CommunicationsSensors10.3390/s2504115525:4(1155)Online publication date: 13-Feb-2025
  • (2024)Aquilo: Temperature-aware scheduler for millimeter-wave devices and networksHigh-Confidence Computing10.1016/j.hcc.2024.1002234:4(100223)Online publication date: Dec-2024
  • (2022)Developing A New Scheduling Algorithm for Wi-Fi 6 Technology Based on Machine LearningUluslararası Muhendislik Arastirma ve Gelistirme Dergisi10.29137/umagd.107590314:1(322-337)Online publication date: 31-Jan-2022
  • (2022)EAPS: Edge-Assisted Predictive Sleep Scheduling for 802.11 IoT StationsIEEE Systems Journal10.1109/JSYST.2021.306392216:1(591-602)Online publication date: Mar-2022
  • (2022)SEMFI: A Software-Based and Real-Time Energy Monitoring Platform for WiFi IoT Devices2022 IEEE Global Humanitarian Technology Conference (GHTC)10.1109/GHTC55712.2022.9911022(212-218)Online publication date: 8-Sep-2022
  • (2021)802.11ad in Smartphones: Energy Efficiency, Spatial Reuse, and Impact on ApplicationsIEEE INFOCOM 2021 - IEEE Conference on Computer Communications10.1109/INFOCOM42981.2021.9488763(1-10)Online publication date: 10-May-2021
  • (2021)Towards Optimizing WLANs Power Saving: Context-Aware Listen IntervalIEEE Access10.1109/ACCESS.2021.31203489(141513-141523)Online publication date: 2021
  • (2021)GreenAP: An Energy-Saving Protocol for Mobile Access PointsWireless Algorithms, Systems, and Applications10.1007/978-3-030-86137-7_59(553-565)Online publication date: 9-Sep-2021
  • (2020)greenMAC Protocol: A Q-Learning-Based Mechanism to Enhance Channel Reliability for WLAN Energy SavingsElectronics10.3390/electronics91017209:10(1720)Online publication date: 19-Oct-2020
  • (2020)Rethinking Wireless Network Management Through Sensor-driven Contextual AnalysisProceedings of the 21st International Workshop on Mobile Computing Systems and Applications10.1145/3376897.3377863(92-97)Online publication date: 3-Mar-2020
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