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Title:TITAN: On-Demand Topology Management in Ad Hoc Networks
Author(s):Sengul, Cigdem; Kravets, Robin
Subject(s):ad hoc networks
Abstract:To reduce energy consumption from idle listening, nodes in ad hoc networks can switch to a power-save mode. However, some nodes may need to stay in active mode to support forwarding. The main challenge of selecting which nodes should stay in active or power-save mode stems from the need to conserve energy while maintaining communication. Although, topology management protocols identify redundant nodes that may power down their radios, such protocols incur proactive backbone maintenance overhead even when the network is idle. On-demand power management manages node transitions from active to power-save mode based on information from the routing protocol. However, on-demand power management is only traffic-driven and may result in keeping redundant nodes awake. In this paper, we propose TITAN, which builds a forwarding backbone reactively utilizing information about both ongoing communication and the current power-management mode of nodes along potential routes. The design of TITAN is based on our analysis of the tradeoffs between using shorter routes and waking up power-saving nodes and using longer routes through nodes that are already active. Through extensive simulation, we demonstrate that TITAN achieves energy conservation while maintaining efficient communication without incurring any additional control overhead for topology management.
Issue Date:2004-10
Genre:Technical Report
Other Identifier(s):UIUCDCS-R-2004-2481
Rights Information:You are granted permission for the non-commercial reproduction, distribution, display, and performance of this technical report in any format, BUT this permission is only for a period of 45 (forty-five) days from the most recent time that you verified that this technical report is still available from the University of Illinois at Urbana-Champaign Computer Science Department under terms that include this permission. All other rights are reserved by the author(s).
Date Available in IDEALS:2009-04-17

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