Improving IEEE 802.11 power saving mechanism

Authors:
Eun-Sun Jung;Nitin H. Vaidya
Affiliations:
Networking Technology Laboratory, Samsung Advanced Institute of Technology, Korea;Department of Electrical and Computer Engineering, and Coordinated Science Laboratory, University of Illinois, Urbana, IL
Venue:
Wireless Networks
Year:
2008

Citing 9
Cited 4

Power-aware routing in mobile ad hoc networks

MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Energy efficient design of portable wireless systems

ISLPED '00 Proceedings of the 2000 international symposium on Low power electronics and design
Application-driven power management for mobile communication

Wireless Networks
Geography-informed energy conservation for Ad Hoc routing

Proceedings of the 7th annual international conference on Mobile computing and networking
Span: An energy-efficient coordination algorithm for topology maintenance in Ad Hoc wireless networks

Proceedings of the 7th annual international conference on Mobile computing and networking
An energy consumption model for performance analysis of routing protocols for mobile ad hoc networks

Mobile Networks and Applications
Energy-Efficient Communication Protocol for Wireless Microsensor Networks

HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Evaluating the Energy-Consumption Reduction in a MANET by Dynamically Switching-off Network Interfaces

ISCC '01 Proceedings of the Sixth IEEE Symposium on Computers and Communications
An overview of the Bluetooth wireless technology

IEEE Communications Magazine

Public Key Signatures and Lightweight Security Solutions in a Wireless Environment

NEW2AN '09 and ruSMART '09 Proceedings of the 9th International Conference on Smart Spaces and Next Generation Wired/Wireless Networking and Second Conference on Smart Spaces
Performance of the Sleep-Mode Mechanism of the New IEEE 802.16m Proposal for Correlated Downlink Traffic

NET-COOP '09 Proceedings of the 3rd Euro-NF Conference on Network Control and Optimization
An adaptive hybrid dynamic power management algorithm for mobile devices

Computer Networks: The International Journal of Computer and Telecommunications Networking
Performance analysis of sleep mode mechanisms in the presence of bidirectional traffic

Computer Networks: The International Journal of Computer and Telecommunications Networking

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper presents an optimization of the power saving mechanism in the Distributed Coordination Function (DCF) in an Independent Basic Service Set (IBSS) of the IEEE 802.11 standard. In the power saving mode specified for DCF, time is divided into so-called beacon intervals. At the start of each beacon interval, each node in the power saving mode periodically wakes up for a duration called the ATIM Window. Nodes are required to be synchronized to ensure that all nodes wake up at the same time. During the ATIM window, the nodes exchange control packets to determine whether they need to stay awake for the rest of the beacon interval. The size of the ATIM window has a significant impact on energy saving and throughput achieved by the nodes. This paper proposes an adaptive mechanism to dynamically choose a suitable ATIM window size. We also allow the nodes to stay awake for only a fraction of the beacon interval following the ATIM window. On the other hand, the IEEE 802.11 DCF mode requires nodes to stay awake either for the entire beacon interval following the ATIM window or not at all. Simulation results showthat the proposed approach outperforms the IEEE 802.11 power saving mechanism in terms of throughput and the amount of energy consumed.