Multislot estimation of fast-varying space-time channels in TD-CDMA systems

M. Nicoli; O. Simeone; U. Spagnolini

doi:10.1109/LCOMM.2002.803476

Multislot estimation of fast-varying space-time channels in TD-CDMA systems

M. Nicoli, O. Simeone, U. Spagnolini

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

In this letter we propose a subspace method to estimate the time-varying space-time channel by taking into account the different rates of variation between delays/directions of arrival (slowly-varying) and faded amplitudes (fast-varying) of the multipath propagation. The stationarity of angles and delays across several time-slots is exploited to perform an unstructured estimation that avoids the explicit computation of the path parameters. Numerical analysis for a TD-CDMA system shows that the asymptotic performance is reached with a reasonable number of slots.

Original language	English (US)
Pages (from-to)	376-378
Number of pages	3
Journal	IEEE Communications Letters
Volume	6
Issue number	9
DOIs	https://doi.org/10.1109/LCOMM.2002.803476
State	Published - Sep 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

Keywords

Antenna array
Channel estimation
Multi-slot
Subspace method
TD-CDMA
TD-SCDMA
ULTRA-TDD

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10.1109/LCOMM.2002.803476

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title = "Multislot estimation of fast-varying space-time channels in TD-CDMA systems",

abstract = "In this letter we propose a subspace method to estimate the time-varying space-time channel by taking into account the different rates of variation between delays/directions of arrival (slowly-varying) and faded amplitudes (fast-varying) of the multipath propagation. The stationarity of angles and delays across several time-slots is exploited to perform an unstructured estimation that avoids the explicit computation of the path parameters. Numerical analysis for a TD-CDMA system shows that the asymptotic performance is reached with a reasonable number of slots.",

keywords = "Antenna array, Channel estimation, Multi-slot, Subspace method, TD-CDMA, TD-SCDMA, ULTRA-TDD",

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AU - Nicoli, M.

AU - Simeone, O.

AU - Spagnolini, U.

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N2 - In this letter we propose a subspace method to estimate the time-varying space-time channel by taking into account the different rates of variation between delays/directions of arrival (slowly-varying) and faded amplitudes (fast-varying) of the multipath propagation. The stationarity of angles and delays across several time-slots is exploited to perform an unstructured estimation that avoids the explicit computation of the path parameters. Numerical analysis for a TD-CDMA system shows that the asymptotic performance is reached with a reasonable number of slots.

AB - In this letter we propose a subspace method to estimate the time-varying space-time channel by taking into account the different rates of variation between delays/directions of arrival (slowly-varying) and faded amplitudes (fast-varying) of the multipath propagation. The stationarity of angles and delays across several time-slots is exploited to perform an unstructured estimation that avoids the explicit computation of the path parameters. Numerical analysis for a TD-CDMA system shows that the asymptotic performance is reached with a reasonable number of slots.

KW - Antenna array

KW - Channel estimation

KW - Multi-slot

KW - Subspace method

KW - TD-CDMA

KW - TD-SCDMA

KW - ULTRA-TDD

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JO - IEEE Communications Letters

JF - IEEE Communications Letters

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ER -

Multislot estimation of fast-varying space-time channels in TD-CDMA systems

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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