Cross-Layer Resource Allocation in Sensor Networks for Distributed Detection with Soft Decision Fusion

Authors

G. Fabeck, D. Bielefeld, R. Mathar,

Abstract

        Wireless sensor networks are usually deployed for specific purposes. A cross-layer design of networking algorithms adapted to the considered application can significantly improve overall performance metrics. In this paper, distributed signal detection in IR-UWB sensor networks with severe resource constraints is considered. The presented algorithms for power assignment aim at minimizing the energy necessary to meet an overall detection performance by exploiting dependencies between application and physical layer. To account for a limited transmission range of the sensor nodes, the approach is furthermore combined with an application-specific formation of node clusters which allows for a hierarchical transmission of the sensor decisions to a fusion center. Numerical results validate that this cross-layer approach leads to substantial energy savings compared to uniform power assignment.

BibTEX Reference Entry 

@inproceedings{FaBiMa09,
	author = {Gernot Fabeck and Daniel Bielefeld and Rudolf Mathar},
	title = "Cross-Layer Resource Allocation in Sensor Networks for Distributed Detection with Soft Decision Fusion",
	booktitle = "{IEEE} IWCLD",
	address = {Palma de Mallorca},
	month = Jun,
	year = 2009,
	hsb = hsb910012518 ,
	}

Downloads

 Download paper  Download bibtex-file

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights there in are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.