An Original Algorithm for Space-Time Localization in Wireless Sensor Networks
Space and time play a crucial role in wireless sensor networks, since sensor nodes are used to collaboratively monitor physical phenomena and their space-time properties. Wireless sensor networks (WSN) are an increasingly attractive means to bridge the gap between the physical and virtual world. WSNs are envisioned to be used to fulfill complex monitoring tasks. A number of techniques and distributed algorithms for location estimation and time synchronization have been developed specifically for sensor networks. A similarity of time and space affects the location estimation and time synchronization, ranging from applications and requirements to basic approaches and concrete algorithmic techniques. An original approach for space and time localization in WSNs is given in this paper. In this algorithm we use a mobile beacon for both localization and synchronization, which moves around the sensors field, aware of its time and position, equipped with a GPS receiver. The synchronization component uses the packets required by the positioning component to improve its performance. The positioning component gets use from the communication, required by the synchronization component to decrease errors. A set of simulations are presented to evaluate the performance of our algorithm in order to reduce communication and processing resources and save energy and network resources.
wireless sensor networks space localization time synchronization mobile beacon GPS
Ustijana R. Shikoska Dancho Davchev Ilinka Ivanoska Gordana Petrovska R Risto Rechkoski Jordan Shikoski
University for Information Science & Technology, Sv.Apostol PavleOhrid, Republic of Macedonia Sv. Kiril i Metodij University, Faculty of Electrical Engineering and Information Technologies Sk University Sv. Kliment OhridskiBitola, Republic of Macedonia University of American College Skopje, Republic of Macedonia
国际会议
2011 International Conference on Information and Computer Networks(ICICN 2011)(2011年信息与计算机网络国际会议)
贵阳
英文
209-214
2011-01-26（万方平台首次上网日期，不代表论文的发表时间）