TY - GEN
T1 - An FRFT-based approach to eliminate multipath interference in Radio Tomographic Imaging networks
AU - Liu, Heng
AU - Zhan, Sha
AU - Zhou, Ronghua
AU - Sun, Wentan
AU - Cui, Jian
AU - Xie, Zhenyong
AU - Su, Xu
PY - 2013
Y1 - 2013
N2 - Radio Tomographic Imaging (RTI) is a technology to locate and track targets by imaging their attenuation to radio signals in wireless networks. Links between many pairs of wireless transceivers experience shadowing losses when the signals travel through the objects, and whereby a linear model can be obtained by relating changes of received signal strength (RSS) to the location of targets in the region. However, the existing shadowing-based RTI technology does not work well in the complex environments because of multipath interference problem. Therefore, we proposed an algorithm based on fractional Fourier transform (FRFT) to estimate the line-of-sight (LOS) signals and separate them from the multipath signals. The simulation results show that our algorithm can eliminate the multipath error in RTI system greatly.
AB - Radio Tomographic Imaging (RTI) is a technology to locate and track targets by imaging their attenuation to radio signals in wireless networks. Links between many pairs of wireless transceivers experience shadowing losses when the signals travel through the objects, and whereby a linear model can be obtained by relating changes of received signal strength (RSS) to the location of targets in the region. However, the existing shadowing-based RTI technology does not work well in the complex environments because of multipath interference problem. Therefore, we proposed an algorithm based on fractional Fourier transform (FRFT) to estimate the line-of-sight (LOS) signals and separate them from the multipath signals. The simulation results show that our algorithm can eliminate the multipath error in RTI system greatly.
UR - http://www.scopus.com/inward/record.url?scp=84893634958&partnerID=8YFLogxK
U2 - 10.1109/ChinaCom.2013.6694610
DO - 10.1109/ChinaCom.2013.6694610
M3 - Conference contribution
AN - SCOPUS:84893634958
SN - 9781479914067
T3 - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Proceedings
SP - 302
EP - 307
BT - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Proceedings
T2 - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013
Y2 - 14 August 2013 through 16 August 2013
ER -