Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Distributed algorithms for guiding navigation across a sensor network
Proceedings of the 9th annual international conference on Mobile computing and networking
Topological hole detection in wireless sensor networks and its applications
DIALM-POMC '05 Proceedings of the 2005 joint workshop on Foundations of mobile computing
Obstacle Detection with Stereo Vision for Off-Road Vehicle Navigation
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03
Efficient Single-Anchor Localization in Sensor Networks
DSSNS '06 Proceedings of the Second IEEE Workshop on Dependability and Security in Sensor Networks and Systems
Distributed obstacle localization in large wireless sensor networks
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Boundary recognition in sensor networks by topological methods
Proceedings of the 12th annual international conference on Mobile computing and networking
A Novel Virtual Anchor Node-Based Localization Algorithm for Wireless Sensor Networks
ICN '07 Proceedings of the Sixth International Conference on Networking
A Selective Anchor Node Localization Algorithm for Wireless Sensor Networks
ICCIT '07 Proceedings of the 2007 International Conference on Convergence Information Technology
Fundamentals of Digital Logic with VHDL Design with CD-ROM
Fundamentals of Digital Logic with VHDL Design with CD-ROM
Efficient mapping of an image processing application for a network-on-chip based implementation
International Journal of High Performance Systems Architecture
A hardware architecture for subtractive clustering
International Journal of High Performance Systems Architecture
Obstacle detection and estimation in wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The presence of multiple obstacles on the real deployed geographical area may hinder the effective operations of large scale wireless sensor network in terms of significant disturbance in proper routing, increased delay in data transmission and increased energy consumptions. To overcome this problem, a novel pulse mode object localisation algorithm and its VLSI implementation for designing the sensor node processor is proposed in this article. The algorithm supports distributed and energy efficient sleep scheduling with periodic synchronisation and reconfigure the routing scheme that can be used to extend the life time of sensor network. The algorithm is made power efficient by using pulse mode operation. It is a high performance sensor node processor with an overall power consumption of 0.012 mW in active mode with a dynamic current of 1.27 mA at the working frequency of 1,536 MHz. The algorithm is verified using MATLAB for different possible obstacles and percentage error has been calculated for each case. The hardware of this sensor node processor has been realised using ISE 14.3 simulation tools and emulated in Virtex-V prototype field programmable gate array kit.