TY - JOUR
T1 - A Voronoi Diagram-Based Grouping Test Localization Scheme in Wireless Sensor Networks
AU - Li, Guangming
AU - Xu, Menghui
AU - Teng, Gaofei
AU - Yang, Wei
AU - Mak, Shu-Lun
AU - Li, Chun-Yin
AU - Lee, Chi-Chung
PY - 2022/9
Y1 - 2022/9
N2 - The wireless sensor network (WSN) provides us with a cost-effective way to remotely monitor a large number of objects, locations, and environmental parameters. Taking advantage of WSNs to applications can add new capabilities to existing products and bring out new services. We propose a novel range-free localization scheme, the Voronoi diagram-based grouping test localization (VTL) scheme, to estimate the location efficiently for WSNs. VTL divides the anchor nodes into multiple groups and uses the corresponding closest Voronoi cells to compute the estimated location. Apart from improving the accuracy of location estimation, it also largely simplifies the implementation. Simulation results show that the VTL scheme has better performance compared with other range-free localization schemes. When reaching a certain anchor node density, the VTL scheme will have higher localization accuracy and a larger percentage of localizable nodes. Hence, VTL is likely more appropriate for upcoming WSN scenarios with large ratios of anchor nodes being available.
AB - The wireless sensor network (WSN) provides us with a cost-effective way to remotely monitor a large number of objects, locations, and environmental parameters. Taking advantage of WSNs to applications can add new capabilities to existing products and bring out new services. We propose a novel range-free localization scheme, the Voronoi diagram-based grouping test localization (VTL) scheme, to estimate the location efficiently for WSNs. VTL divides the anchor nodes into multiple groups and uses the corresponding closest Voronoi cells to compute the estimated location. Apart from improving the accuracy of location estimation, it also largely simplifies the implementation. Simulation results show that the VTL scheme has better performance compared with other range-free localization schemes. When reaching a certain anchor node density, the VTL scheme will have higher localization accuracy and a larger percentage of localizable nodes. Hence, VTL is likely more appropriate for upcoming WSN scenarios with large ratios of anchor nodes being available.
KW - grid scan
KW - localization
KW - range-free
KW - Voronoi
KW - wireless sensor networks
UR - https://www.scopus.com/pages/publications/85138715354
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85138715354&origin=recordpage
U2 - 10.3390/electronics11182961
DO - 10.3390/electronics11182961
M3 - RGC 21 - Publication in refereed journal
SN - 2079-9292
VL - 11
JO - Electronics (Switzerland)
JF - Electronics (Switzerland)
IS - 18
M1 - 2961
ER -