Research Article

Neighbor Constraint Assisted Distributed Localization for Wireless Sensor Networks

Table 1

Average distance estimation error.

Number of nodes
(Avg. degree)
Avg. distance estimation error (m)
Random placementPerturbed grid
DV-HopNCA-DLDV-HopNCA-DL

124 (4.8)12.326.136.154.51
147 (5.8)8.284.704.012.38
203 (7.5)5.433.713.922.17
403 (11.1)3.392.352.991.55
628 (14.2)3.062.042.721.35