Estimation of multipath parameters in wireless communications

In a parametric multipath propagation model, a source is received by an antenna array via a number of rays, each described by an arrival angle, a delay, and a fading parameter. Unlike the fading, the angles and delays are stationary over long time intervals. This fact is exploited in a new subspace-...

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Bibliographic Details
Published in:IEEE transactions on signal processing 1998-03, Vol.46 (3), p.682-690
Main Authors: Vanderveen, M.C., Van der Veen, A.-J., Paulraj, A.
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas and propagation
Applied sciences
Delay effects
Delay estimation
Detection, estimation, filtering, equalization, prediction
Direction of arrival estimation
Equipments and installations
Exact sciences and technology
Fading
Information, signal and communications theory
Mobile radiocommunication systems
Parameter estimation
Propagation delay
Radiocommunications
Receiving antennas
Signal and communications theory
Signal, noise
Telecommunications
Telecommunications and information theory
Wireless communication
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Description
Summary:In a parametric multipath propagation model, a source is received by an antenna array via a number of rays, each described by an arrival angle, a delay, and a fading parameter. Unlike the fading, the angles and delays are stationary over long time intervals. This fact is exploited in a new subspace-based high-resolution method for simultaneous estimation of the angle/delay parameters from multiple estimates of the channel impulse response. A computationally expensive optimization search can be avoided by using an ESPRIT-like algorithm. Finally, we investigate certain resolution issues that take the fact that the source is bandlimited into account.
ISSN:1053-587X
1941-0476
DOI:10.1109/78.661335