TY - GEN
T1 - Joint TOA/AOA-based localization in wireless sensor networks
AU - Jeong, Seongah
AU - Sung, Tae Kyung
AU - Lee, Kwang Eog
AU - Kang, Joonhyuk
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/23
Y1 - 2014/1/23
N2 - Wireless sensor network (WSN) localization has drawn attention in a broad spectrum of applications for security, disaster response, monitoring, surveillance and tactical system. The deployment of a large number of low-cost, low-power and multi-functional sensors is preferred, which provides an exceptional localization performance via cooperative communication. In this paper, we consider a cooperative localization in WSNs consisting of multiple anchor nodes (ANs) equipped with a linear antenna array of M elements, a single-antenna target and a central unit (CU). We focus on a synchronous network and all the channels are supposed to be frequency-flat. Our objective is to evaluate the performance of localization technique for the target's position that jointly exploits both Time-of-Arrival (TOA) and Angle-of-Arrival (AOA) measurements. We derive the Cramér-Rao bound (CRB) for a joint TOA/AOA-based localization. Additionally, for the performance comparison, the CRBs of solely TOA- and AOA-based localizations are also derived. By numerical results, our analysis is verified and it is observed that the joint TOA/AOA-based localization has a superior performance than either TOA- or AOA-based localization.
AB - Wireless sensor network (WSN) localization has drawn attention in a broad spectrum of applications for security, disaster response, monitoring, surveillance and tactical system. The deployment of a large number of low-cost, low-power and multi-functional sensors is preferred, which provides an exceptional localization performance via cooperative communication. In this paper, we consider a cooperative localization in WSNs consisting of multiple anchor nodes (ANs) equipped with a linear antenna array of M elements, a single-antenna target and a central unit (CU). We focus on a synchronous network and all the channels are supposed to be frequency-flat. Our objective is to evaluate the performance of localization technique for the target's position that jointly exploits both Time-of-Arrival (TOA) and Angle-of-Arrival (AOA) measurements. We derive the Cramér-Rao bound (CRB) for a joint TOA/AOA-based localization. Additionally, for the performance comparison, the CRBs of solely TOA- and AOA-based localizations are also derived. By numerical results, our analysis is verified and it is observed that the joint TOA/AOA-based localization has a superior performance than either TOA- or AOA-based localization.
KW - Angle-of-Arrival (AOA)
KW - Cramér-Rao bound (CRB)
KW - Time-of-Arrival (TOA)
KW - Wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=84946685249&partnerID=8YFLogxK
U2 - 10.1109/ICSPCS.2014.7021103
DO - 10.1109/ICSPCS.2014.7021103
M3 - Conference contribution
AN - SCOPUS:84946685249
T3 - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
BT - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
A2 - Wysocki, Beata J.
A2 - Wysocki, Tadeusz A.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014
Y2 - 15 December 2014 through 17 December 2014
ER -