TY - JOUR
T1 - Convex Relaxation Approaches to Robust RSS-TOA Based Source Localization in NLOS Environments
AU - Xiong, Wenxin
AU - Mohanty, Sneha
AU - Schindelhauer, Christian
AU - Rupitsch, Stefan Johann
AU - So, Hing Cheung
PY - 2023/8
Y1 - 2023/8
N2 - For handling unreliable datasets contaminated by the non-line-of-sight (NLOS) bias errors, this correspondence statistically robustifies the traditional least squares type hybrid received signal strength and time-of-arrival location estimator using the ℓ1 and Huber loss functions. The two robust formulations are then tackled via different convex relaxation approaches. Numerical results are presented to make fair comparisons with the commonly adopted balancing parameter based scheme, demonstrating the positioning accuracy superiority of the proposed methods in various NLOS environments. © 2023 IEEE.
AB - For handling unreliable datasets contaminated by the non-line-of-sight (NLOS) bias errors, this correspondence statistically robustifies the traditional least squares type hybrid received signal strength and time-of-arrival location estimator using the ℓ1 and Huber loss functions. The two robust formulations are then tackled via different convex relaxation approaches. Numerical results are presented to make fair comparisons with the commonly adopted balancing parameter based scheme, demonstrating the positioning accuracy superiority of the proposed methods in various NLOS environments. © 2023 IEEE.
KW - ℓ1 loss
KW - Computational modeling
KW - convex relaxation
KW - Huber loss
KW - Linear programming
KW - Location awareness
KW - Minimization
KW - Position measurement
KW - Programming
KW - Received signal strength
KW - robust localization
KW - Sensors
KW - time-of-arrival
UR - http://www.scopus.com/inward/record.url?scp=85151496566&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85151496566&origin=recordpage
U2 - 10.1109/TVT.2023.3259018
DO - 10.1109/TVT.2023.3259018
M3 - RGC 21 - Publication in refereed journal
SN - 0018-9545
VL - 72
SP - 11068
EP - 11073
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 8
ER -