TY - GEN
T1 - Space-time Doppler spread estimation in mobile fading channels
AU - Zhang, Hong
AU - Abdi, Ali
PY - 2006/1/1
Y1 - 2006/1/1
N2 - The Doppler spread, or the mobile speed, reflects how fast in time the fading is experienced by the receiver, and its knowledge is useful for many mobile communication subsystems. In this paper we propose a new speed estimator at the base station, where multiple antennas are available. The estimator is an extension of the single-antenna speed estimation technique proposed in [1]. By taking advantage of the spatial information provided by an antenna array at the base station, the new low-complexity estimator performs very well over a wide range of noise power, nonisotropic scattering, and line-of-sight component, verified by extensive Monte Carlo simulations. The superior performance of the new estimator is further illustrated by comparing with the conventional speed estimation techniques.
AB - The Doppler spread, or the mobile speed, reflects how fast in time the fading is experienced by the receiver, and its knowledge is useful for many mobile communication subsystems. In this paper we propose a new speed estimator at the base station, where multiple antennas are available. The estimator is an extension of the single-antenna speed estimation technique proposed in [1]. By taking advantage of the spatial information provided by an antenna array at the base station, the new low-complexity estimator performs very well over a wide range of noise power, nonisotropic scattering, and line-of-sight component, verified by extensive Monte Carlo simulations. The superior performance of the new estimator is further illustrated by comparing with the conventional speed estimation techniques.
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U2 - 10.1109/MILCOM.2006.302325
DO - 10.1109/MILCOM.2006.302325
M3 - Conference contribution
SN - 1424406188
SN - 9781424406180
T3 - Proceedings - IEEE Military Communications Conference MILCOM
BT - Military Communications Conference 2006, MILCOM 2006
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Military Communications Conference 2006, MILCOM 2006
Y2 - 23 October 2006 through 25 October 2006
ER -