TY - GEN
T1 - A spectral moment approach to velocity estimation in mobile communications
AU - Tepedelenlioglu, Cihan
AU - Giannakis, Georgios B.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Estimation of the maximum Doppler spread, or equivalently the vehicle velocity is useful in improving handoff algorithms, and necessary for the optimal tuning of parameters for systems that adapt to changing channel conditions. We provide a novel velocity estimator based on the spectral moments of the in-phase and the quadrature-phase components or the squared envelope of the received signal. We characterize the joint effects of the Ricean K-factor, the directivity and the angle of non-isotropic scattering, and the effects of additive white noise on our estimator and other covariance-based velocity estimators analytically. Simulations illustrate our approach and compare with existing techniques.
AB - Estimation of the maximum Doppler spread, or equivalently the vehicle velocity is useful in improving handoff algorithms, and necessary for the optimal tuning of parameters for systems that adapt to changing channel conditions. We provide a novel velocity estimator based on the spectral moments of the in-phase and the quadrature-phase components or the squared envelope of the received signal. We characterize the joint effects of the Ricean K-factor, the directivity and the angle of non-isotropic scattering, and the effects of additive white noise on our estimator and other covariance-based velocity estimators analytically. Simulations illustrate our approach and compare with existing techniques.
UR - http://www.scopus.com/inward/record.url?scp=0036403392&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036403392&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0036403392
SN - 0780365968
T3 - 2000 IEEE Wireless Communications and Networking Conference
SP - 782
EP - 786
BT - 2000 IEEE Wireless Communications and Networking Conference
ER -