Localization from mere connectivity
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
A Partial-Range-Aware Localization Algorithm for Ad-hoc Wireless Sensor Networks
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
Efficient Single-Anchor Localization in Sensor Networks
DSSNS '06 Proceedings of the Second IEEE Workshop on Dependability and Security in Sensor Networks and Systems
Wireless Sensor Networks: Technology, Protocols, and Applications
Wireless Sensor Networks: Technology, Protocols, and Applications
Range-Free Localization Using Expected Hop Progress in Wireless Sensor Networks
IEEE Transactions on Parallel and Distributed Systems
Wireless Sensor Networks
Distributed sensor localization in random environments using minimal number of anchor nodes
IEEE Transactions on Signal Processing
Efficient weighted multidimensional scaling for wireless sensor network localization
IEEE Transactions on Signal Processing
Localization systems for wireless sensor networks
IEEE Wireless Communications
IEEE Transactions on Consumer Electronics
LSWD: localization scheme for wireless sensor networks using directional antenna
IEEE Transactions on Consumer Electronics
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Localization of nodes in a sensor network is essential for the following two reasons: (i) to know the location of a node reporting the occurrence of an event, and (ii) to initiate a prompt action whenever necessary. Different localization techniques have been proposed in the literature. Most of these techniques use three location aware nodes for localization of an unknown node. Moreover, the localization techniques also differ from environment to environment. In this paper, we proposed a localization technique for grid environment. Sensor nodes are deployed in a grid pattern and localization is achieved using a single location aware or anchor node. We have identified three types of node in the proposed scheme: (i) Anchor node, (ii) Unknown node and (iii) Special node. First, the special nodes are localized with respect to the anchor node, then the unknown nodes are localized using trilateration mechanism. We have compared the proposed scheme with an existing localization algorithm for grid deployment called Multiduolateration. The parameters considered for localization are localization time and localization error. It is observed that localization time and error in the proposed scheme is lower than that of Multiduolateration.