The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Dynamic fine-grained localization in Ad-Hoc networks of sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Robust Positioning Algorithms for Distributed Ad-Hoc Wireless Sensor Networks
ATEC '02 Proceedings of the General Track of the annual conference on USENIX Annual Technical Conference
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Localization in underwater sensor networks: survey and challenges
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
Organizing a global coordinate system from local information on an ad hoc sensor network
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
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The Layer-Terrain algorithm is proposed in the background of underwater environment, focusing on reduction of the accumulated location error. Based on the TERRAIN algorithm, this algorithm introduces the concept of layer, sequences the reference nodes according to the information of layer and estimates the position by maximum likelihood estimation. This sequencing process not only makes use of redundant information, but also limits the amount of computing data. The simulation experiments show that the improved algorithm efficiently deals with error propagation among the network and improves the localization precision of TERRAIN algorithm.