Power-Saving Protocols for IEEE 802.11-Based Multi-Hop Ad Hoc Networks

—Power-saving is a critical issue for almost all kinds of portable devices. In this paper, we consider the design of power-saving protocols for mobile ad hoc networks (MANETs) that allow mobile hosts to switch to a low-power sleep mode. The MANETs being considered in this paper are characterized by unpredictable mobility, multi-hop communication, and no clock synchronization mechanism. In particular, the last characteristic would complicate the problem since a host has to predict when another host will wake up to receive packets. We propose three power management protocols, namely dominating-awake-interval, periodically-fully-awake-interval, and quorum-based protocols, which are directly applicable to IEEE 802.11based MANETs. As far as we know, the power management problem for multi-hop MANETs has not been seriously addressed in the literature. Existing standards, such as IEEE 802.11, HIPERLAN, and bluetooth, all assume that the network is fully connected or there is a clock synchron...

• Type: Conference
• Year: 2002
• Where: INFOCOM
• Authors: Yu-Chee Tseng, Chih-Shun Hsu, Ten-Yueng Hsieh
• Keywords: Clock Synchronization Mechanism, Communications, INFOCOM 2002, Mobile Ad Hoc Network, Power Management