Geography-informed energy conservation for Ad Hoc routing
Proceedings of the 7th annual international conference on Mobile computing and networking
A directionality based location discovery scheme for wireless sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
The bits and flops of the n-hop multilateration primitive for node localization problems
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Using proximity and quantized RSS for sensor localization in wireless networks
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
Distributed beamforming for information transfer in sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
Phased Array and Adaptive Antenna Transceivers in Wireless Sensor Networks
DSD '04 Proceedings of the Digital System Design, EUROMICRO Systems
Localization for mobile sensor networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Location Estimation in Ad Hoc Networks with Directional Antennas
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
A Localization Scheme for Sensor Networks based onWireless Communication with Anchor Groups
ICPADS '05 Proceedings of the 11th International Conference on Parallel and Distributed Systems - Volume 01
A RSSI-based and calibrated centralized localization technique forWireless Sensor Networks
PERCOMW '06 Proceedings of the 4th annual IEEE international conference on Pervasive Computing and Communications Workshops
Wireless Personal Communications: An International Journal
ICNP '06 Proceedings of the Proceedings of the 2006 IEEE International Conference on Network Protocols
A directional-antenna based MAC protocol for wireless sensor networks
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part II
Software radio implementation of a smart antenna system on digital signal processors for cdma2000
CIT'04 Proceedings of the 7th international conference on Intelligent Information Technology
Collaborative beamforming for distributed wireless ad hoc sensor networks
IEEE Transactions on Signal Processing
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For Wireless Sensor Networks (WSNs), although many localization techniques have been proposed, development of effective localization techniques for sensor nodes, which do not require any hardware or computational burdens on them, continues to be a challenging task. Motivated by this need, this paper proposes a new location discovery scheme in WSNs so called Sectoral Sweeper based Location Estimation (SSLE). Sectoral Sweeper (SS) relies on integration of smart antenna processing capability only at a central node. By expanding the SS scheme, the key idea in the SSLE is to perform two dimensional (azimuth and range) sweeping process over a given sensor field with beamforming capable central node followed by range estimation and direction estimation algorithms. It does not require any hardware or computational load at tiny sensor nodes. Performance evaluation of the SSLE is given in terms of localization error, response message statistics, and complexity analysis for grid and randomly deployed sensor node scenarios under various sweeping conditions. The SSLE performance is also compared with the Centroid method. The advantage of the SSLE is that it is applicable to environments with hard-to-access sensor deployment scenarios and that desired localization accuracy can be obtained by properly adjusting sweeping parameters.