TY - GEN
T1 - Round-trip time-based wireless positioning without time synchronization
AU - Park, Sangyoung
AU - Ahn, Hyo Sung
AU - Yu, Wonpil
PY - 2007
Y1 - 2007
N2 - In this paper, we suggest a new positioning system that uses two-way time-of-arrival, called round-trip time (RTT). There already exist positioning systems based on time-of-arrival (TOA) and time difference-of-arrival (TDOA). Although these methods have been shown to be effective, they have a serious problem in installing and maintaining hardware for time synchronization. However, in the case of RTT-based method, the time synchronization is not needed even though the delay arose from the node makes it hard to measure the exact round-trip time. In this paper, we put another node called time-reference node that can estimate the internal delay of the node. Using the time-reference node, we can obtain a more accurate RTT measurement and the distance between nodes without time synchronization. We then locate a mobile node without time synchronization. Our positioning system is evaluated using network simulator.
AB - In this paper, we suggest a new positioning system that uses two-way time-of-arrival, called round-trip time (RTT). There already exist positioning systems based on time-of-arrival (TOA) and time difference-of-arrival (TDOA). Although these methods have been shown to be effective, they have a serious problem in installing and maintaining hardware for time synchronization. However, in the case of RTT-based method, the time synchronization is not needed even though the delay arose from the node makes it hard to measure the exact round-trip time. In this paper, we put another node called time-reference node that can estimate the internal delay of the node. Using the time-reference node, we can obtain a more accurate RTT measurement and the distance between nodes without time synchronization. We then locate a mobile node without time synchronization. Our positioning system is evaluated using network simulator.
KW - Internal delay
KW - Localization
KW - Positioning
KW - Round-trip time (RTT)
UR - http://www.scopus.com/inward/record.url?scp=48349095893&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48349095893&partnerID=8YFLogxK
U2 - 10.1109/ICCAS.2007.4406716
DO - 10.1109/ICCAS.2007.4406716
M3 - Conference contribution
AN - SCOPUS:48349095893
SN - 8995003871
SN - 9788995003879
T3 - ICCAS 2007 - International Conference on Control, Automation and Systems
SP - 2323
EP - 2326
BT - ICCAS 2007 - International Conference on Control, Automation and Systems
T2 - International Conference on Control, Automation and Systems, ICCAS 2007
Y2 - 17 October 2007 through 20 October 2007
ER -