TIAN Feng, GUO Wei, WANG Chuan-yun, et al. Multilevel Localization Model and Localization Error Analyze for Large Scale WSNs[J]. Acta Electronica Sinica, 2009, 37(5): 1095-1099.
TIAN Feng, GUO Wei, WANG Chuan-yun, et al. Multilevel Localization Model and Localization Error Analyze for Large Scale WSNs[J]. Acta Electronica Sinica, 2009, 37(5): 1095-1099.DOI:
Aiming at the localization problem of large scale WSNs
a multilevel localization model is presented.Firstly
the nodes are divided into different levels according to their characters
and then localization algorithms are designed for each level and combined to the whole localization model of WSNs.The errors of each level and the error propagation between the levels have been analyzed
and the methods of reducing them are presented.Simulation results show that the multilevel localization model can deal well with the error accumulation
and the position error can be reduced 16% than DV-Hop while the position error of communicate level nodes is 0.05 and edge measurement error is 0.3.