Power management protocol for regular wireless sensor networks

Authors:
Chih-Pin Liao;Jang-Ping Sheu;Chih-Shun Hsu
Affiliations:
Department of Computer Science and Information Engineering, National Central University, Chung-Li, Taiwan;Department of Computer Science and Information Engineering, National Central University, Chung-Li, Taiwan;Department of Information Management, Nanya Institute of Technology, Chung-Li, Taiwan
Venue:
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part I
Year:
2005

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Abstract

Most of the existing power saving protocols are designed for irregular networks. These protocols can also be applied to regular networks, but these protocols do not consider the characteristics of regular networks and thus are more complicated and less efficient than the protocols designed for regular networks. Therefore, we propose a novel power management protocol for regular WSNs. Gathering information to the base station is an important operation for WSN. Hence, even some nodes switch to PS mode, the network still needs to be connected so that the sensed information can be sent to the base station through the active nodes. The goal of our protocols is to choose several different connected dominating sets, so that these connected dominating sets can switch to active mode in turn to serve other nodes in PS mode. Simulation results show that our power management protocol can conserve lots of power and greatly extend the lifetime of the WSN with a reasonable extra transmission delay.