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End-to-end Routing for Dual-Radio Sensor Networks

Thanos Stathopoulos, Martin Lukac, Dustin McIntire, John Heidemann, Deborah Estrin, and William J. Kaiser
USC/Information Sciences Institute

Abstract

Dual-radio, dual-processor nodes are an emerging class of Wireless Sensor Network devices that provide both low-energy operation as well as substantially increased computational performance and communication bandwidth for applications. In such systems, the secondary radio and processor operates with sufficiently low power that it may remain always vigilant, while the the main processor and primary, high-bandwidth radio remain off until triggered by the application. By exploiting the high energy efficiency of the main processor and primary radio along with proper usage, net operating energy benefits are enabled for applications. The secondary radio provides a constantly available multi-hop network, while paths in the primary network exist only when required. This paper describes a topology control mechanism for establishing an end-to-end path in a network of dual-radio nodes using the secondary radios as a control channel to selectively wake up nodes along the required end-to-end path. Using numerical models as well as testbed experimentation, we show that our proposed mechanism provides significant energy savings of more than $60%$ compared to alternative approaches, and that it incurs only moderately greater application latency.

Availability

This paper is available in several formats: abstract web page with pointers and cites, PDF, paper copies can be obtained by mail to the authors. Copyright terms for this paper appear below.

Reference

Stathopoulos07a: Thanos Stathopoulos, Martin Lukac, Dustin McIntire, John Heidemann, Deborah Estrin, and William J. Kaiser. End-to-end Routing for Dual-Radio Sensor Networks. In Proceedings of the IEEE Infocom, p. to appear. Anchorage, Alaska, USA, IEEE. May, 2007. <http://www.isi.edu/~johnh/PAPERS/Stathopoulos07a.html>.

@inproceedings{Stathopoulos07a,
	author = "Thanos Stathopoulos and Martin Lukac and
 Dustin McIntire and John Heidemann and
 Deborah Estrin and William J. Kaiser",
	title = "End-to-end Routing for Dual-Radio Sensor Networks",
	booktitle = "Proceedings of the  {IEEE} Infocom",
	year = "2007",
	publisher = "{IEEE}",
	address = "Anchorage, Alaska, USA",
	month = "May",
	pages = "to appear",
	keywords = "dual-radio, experimental evaluation, motes
                         and 802.11, LEAP nodes",
	url = "http://www.isi.edu/~johnh/PAPERS/Stathopoulos07a.html",
	pdfurl = "http://www.isi.edu/~johnh/PAPERS/Stathopoulos07a.pdf",
	copyrightholder = "{IEEE}",
}

Copyright

This paper is copyright © 2007 by IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.