TITAN: On-Demand Topology Management in Ad Hoc Networks

Sengul, Cigdem; Kravets, Robin

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https://hdl.handle.net/2142/10916 Copy

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Title

TITAN: On-Demand Topology Management in Ad Hoc Networks

Author(s)

• Sengul, Cigdem
• Kravets, Robin

Issue Date

2004-10

Keyword(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.

Type of Resource

text

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http://hdl.handle.net/2142/10916

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