TY - GEN
T1 - Space-Time diversity for NLOS mitigation in TDOA-based positioning systems
AU - Rene Jativa, E.
AU - Garzon, Esteban
AU - Vidal, Josep
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/4/26
Y1 - 2016/4/26
N2 - This paper studies the potential impact of using space-Time information in the mitigation of the Non-Line-Of-Sight condition in mobile subscriber's positioning systems. First of all, this work discusses the positioning problem based on measures of Time Differences Of Arrival departing from a more exact characterization of the signal statistics and including some geometrical restrictions to achieve an improved accurate. Furthermore, a novel approach that integrates signal propagation characteristics to information provided by a suitable timing estimation model based on Cramer Rao Bound for a Rayleigh-fading channel, when antenna arrays are used at the receiver and when a set of channel vector estimates are available, has been introduced to study the positive benefits of space-Time diversity. These approaches are evaluated within a realistic simulation scenario.
AB - This paper studies the potential impact of using space-Time information in the mitigation of the Non-Line-Of-Sight condition in mobile subscriber's positioning systems. First of all, this work discusses the positioning problem based on measures of Time Differences Of Arrival departing from a more exact characterization of the signal statistics and including some geometrical restrictions to achieve an improved accurate. Furthermore, a novel approach that integrates signal propagation characteristics to information provided by a suitable timing estimation model based on Cramer Rao Bound for a Rayleigh-fading channel, when antenna arrays are used at the receiver and when a set of channel vector estimates are available, has been introduced to study the positive benefits of space-Time diversity. These approaches are evaluated within a realistic simulation scenario.
KW - Antenna Arrays
KW - Cramer Rao Bounds (CRB)
KW - NLOS mitigation
KW - TDOA based positioning systems
KW - WLLS
KW - geometrical restrictions
KW - wireless sensor network
UR - https://www.scopus.com/pages/publications/84973908587
U2 - 10.1109/IESummit.2016.7459771
DO - 10.1109/IESummit.2016.7459771
M3 - Contribución a la conferencia
AN - SCOPUS:84973908587
T3 - 2016 IEEE International Engineering Summit, IE-Summit 2016
BT - 2016 IEEE International Engineering Summit, IE-Summit 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Engineering Summit, IE-Summit 2016
Y2 - 2 March 2016 through 5 March 2016
ER -