A robust pilot-assisted equaliser for the partially loaded downlink UMTS TDD

M. Hadef; A. Daas; S. Weiss; Josh  Reiss; Xiaodong  Chen

A robust pilot-assisted equaliser for the partially loaded downlink UMTS TDD

M. Hadef, A. Daas, S. Weiss, Josh Reiss, Xiaodong Chen

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

In this paper, we propose a robust pilot-assisted equalisation strategy for the partially loaded time-division duplex (TDD) component of the universal mobile telecommunications system (UMTS). In addition to training-based equalisation performed using the midamble of a data packet, some of the unused preading codes are exploited to upload pilots in order to perform an additional semi-blind adaptation over the payload of a packet. The latter ensures continuous
adaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts

Original language	English
Pages	703-707
Number of pages	5
Publication status	Published - 2007
Event	15th European Signal Processing Conference - Poznan , Poland Duration: 3 Sep 2007 → 7 Sep 2007

Conference

Conference	15th European Signal Processing Conference
Abbreviated title	EUSIPCO 2007
Country	Poland
City	Poznan
Period	3/09/07 → 7/09/07

Keywords

affine projection scheme
concurrent adaptation
downlink UMTS TDD
constant modulus
decision directed
spectrum efficiency

Access to Document

http://www.elec.qmul.ac.uk/people/josh/documents/HadefDaasWeissReiss-EUSIPCO2007.pdf

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Cite this

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title = "A robust pilot-assisted equaliser for the partially loaded downlink UMTS TDD",

abstract = "In this paper, we propose a robust pilot-assisted equalisation strategy for the partially loaded time-division duplex (TDD) component of the universal mobile telecommunications system (UMTS). In addition to training-based equalisation performed using the midamble of a data packet, some of the unused preading codes are exploited to upload pilots in order to perform an additional semi-blind adaptation over the payload of a packet. The latter ensures continuousadaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts",

keywords = "affine projection scheme, concurrent adaptation, downlink UMTS TDD, constant modulus, decision directed, spectrum efficiency",

author = "M. Hadef and A. Daas and S. Weiss and Josh Reiss and Xiaodong Chen",

year = "2007",

language = "English",

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note = "15th European Signal Processing Conference, EUSIPCO 2007 ; Conference date: 03-09-2007 Through 07-09-2007",

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T1 - A robust pilot-assisted equaliser for the partially loaded downlink UMTS TDD

AU - Hadef, M.

AU - Daas, A.

AU - Weiss, S.

AU - Reiss, Josh

AU - Chen, Xiaodong

PY - 2007

Y1 - 2007

N2 - In this paper, we propose a robust pilot-assisted equalisation strategy for the partially loaded time-division duplex (TDD) component of the universal mobile telecommunications system (UMTS). In addition to training-based equalisation performed using the midamble of a data packet, some of the unused preading codes are exploited to upload pilots in order to perform an additional semi-blind adaptation over the payload of a packet. The latter ensures continuousadaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts

AB - In this paper, we propose a robust pilot-assisted equalisation strategy for the partially loaded time-division duplex (TDD) component of the universal mobile telecommunications system (UMTS). In addition to training-based equalisation performed using the midamble of a data packet, some of the unused preading codes are exploited to upload pilots in order to perform an additional semi-blind adaptation over the payload of a packet. The latter ensures continuousadaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts

KW - affine projection scheme

KW - concurrent adaptation

KW - downlink UMTS TDD

KW - constant modulus

KW - decision directed

KW - spectrum efficiency

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M3 - Paper

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T2 - 15th European Signal Processing Conference

Y2 - 3 September 2007 through 7 September 2007

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