Dynamic fine-grained localization in Ad-Hoc networks of sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Mobile Communications Handbook
Mobile Communications Handbook
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
Impact of radio irregularity on wireless sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Location Estimation in Ad Hoc Networks with Directional Antennas
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Localization in sparse networks using sweeps
Proceedings of the 12th annual international conference on Mobile computing and networking
A Theory of Network Localization
IEEE Transactions on Mobile Computing
| Hi-index | 0.00 |
In this paper, we propose to integrate Out-of-Range information with the multi-lateration scheme to resolve location ambiguities of unknown sensor nodes, which can not gain sufficient reference nodes information due to an insufficient number of reference nodes or low level of network density. The proposed scheme is based on the observation that, if a node, N1, is out of the transmission range of another node, N2, the distance between N1 and N2 must be larger than a given threshold value. This information, referred as "Out-of-Range" can then be used to eliminate location ambiguities of some unknown nodes in Wireless Sensor Networks (WSNs). The simulation results show that the proposed scheme can significantly increase the number of resolved sensor nodes, compared with multi-lateration schemes when the network connectivity is low. In contrast, when node density is high, the proposed scheme can discover the same number of nodes with a smaller number of anchor nodes.