YANG Xiang1, PAN Wei4. DV-Hop localization algorithm for wireless sensor networks based on RSSI ratio improving[J]. 2013, 32(7): 126-128+135. DOI: 10.13873/j.1000-97872013.07.027.
Aiming at large error of distance estimation from unknown node to beacon node traditional DV-Hop algorithm caused by not considering the uneven distribution of WSNs nodes
and merely use network hops to estimate the hop distance
a RSSI ratio based improving DV-Hop localization algorithm is put forward
which uses RSSI to substitute the Edistance between nodes to revise the average hop distance.Simulation experiments show that the improved algorithm effectively improves DV-Hop localization precision without increasing communication costs
and also enhances environmental adaptability of algorithm.
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