Discrete-time signal processing (2nd ed.)
Discrete-time signal processing (2nd ed.)
Principles of mobile communication (2nd ed.)
Principles of mobile communication (2nd ed.)
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 05
Estimating Jakes' Doppler power spectrum parameters using the whittle approximation
IEEE Transactions on Signal Processing
VEPSD: a novel velocity estimation algorithm for next-generation wireless systems
IEEE Transactions on Wireless Communications
Robust Doppler spread estimation in nonisotropic fading channels
IEEE Transactions on Wireless Communications
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The Doppler spread, or equivalently, the mobile speed, is a measure of the spectral dispersion of mobile fading channel. Accurate estimation of the mobile speed is of importance in wireless mobile applications which require the knowledge of the rate of channel variations. This paper exploits the inherent cyclostationarity of linearly modulated signals, transmitted through fading channels, to design robust blind and data-aided mobile speed estimators. Two categories of cyclic-correlation-and cyclic-spectrum-based methods are developed. Extension to space-time speed estimation at the base station in macrocells is also provided. In comparison with the existing methods, the new estimators can be used without any need for pilot tones, and are robust to additive stationary noise or interference of any color or distribution. Unlike the conventional multi-antenna based method, the proposed space-time speed estimator does not assume the receiver noise to be spatially white. We also devised a suboptimal training sequence for pilot-symbol assisted methods, to reduce the estimation error. The performances of the proposed estimators are illustrated via extensive Monte Carlo simulations.