Feedback schemes for FDD WCDMA systems in multipath environments

Jyri Hämäläinen; R Wichman

doi:10.1109/VETECS.2001.944839

Feedback schemes for FDD WCDMA systems in multipath environments

Not published at Aalto University

Nokia Networks

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Transmit diversity techniques provide attractive solutions for increasing downlink capacity in 3G systems within low-mobility environments. Open-loop and closed-loop transmit diversity modes with two transmit antennas have already been included into 3GPP WCDMA Release 4, and at the moment schemes exploiting a larger number of transmit antennas are being developed.

This paper analyzes the performance of the 3GPP WCDMA closed-loop modes in multipath Rayleigh fading channels. We use signal-to-noise ratio (SNR) gain as a performance measure, which corresponds to the gain in expected SNR when feedback information from the receiver is applied in the transmitter.

Original language	English
Title of host publication	IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS
Publisher	IEEE
Pages	238-242
Number of pages	5
ISBN (Print)	0-7803-6728-6
DOIs	https://doi.org/10.1109/VETECS.2001.944839
Publication status	Published - 2001
MoE publication type	A4 Conference publication
Event	IEEE Vehicular Technology Conference - Rhodes, Greece Duration: 6 May 2001 → 9 May 2001 Conference number: 53

Publication series

Name	IEEE VTS Vehicular Technology Conference Proceedings
Publisher	IEEE
ISSN (Print)	1090-3038

Conference

Conference	IEEE Vehicular Technology Conference
Abbreviated title	VTC
Country/Territory	Greece
City	Rhodes
Period	06/05/2001 → 09/05/2001

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10.1109/VETECS.2001.944839

Cite this

@inproceedings{c60a76e364a0491eb201e6c6adc8e4aa,

title = "Feedback schemes for FDD WCDMA systems in multipath environments",

abstract = "Transmit diversity techniques provide attractive solutions for increasing downlink capacity in 3G systems within low-mobility environments. Open-loop and closed-loop transmit diversity modes with two transmit antennas have already been included into 3GPP WCDMA Release 4, and at the moment schemes exploiting a larger number of transmit antennas are being developed.This paper analyzes the performance of the 3GPP WCDMA closed-loop modes in multipath Rayleigh fading channels. We use signal-to-noise ratio (SNR) gain as a performance measure, which corresponds to the gain in expected SNR when feedback information from the receiver is applied in the transmitter.",

author = "Jyri H{\"a}m{\"a}l{\"a}inen and R Wichman",

year = "2001",

doi = "10.1109/VETECS.2001.944839",

language = "English",

isbn = "0-7803-6728-6",

series = "IEEE VTS Vehicular Technology Conference Proceedings",

publisher = "IEEE",

pages = "238--242",

booktitle = "IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS",

address = "United States",

note = "IEEE Vehicular Technology Conference, VTC ; Conference date: 06-05-2001 Through 09-05-2001",

}

Feedback schemes for FDD WCDMA systems in multipath environments. / Hämäläinen, Jyri ; Wichman, R.
IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS. IEEE, 2001. p. 238-242 (IEEE VTS Vehicular Technology Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Hämäläinen, Jyri

AU - Wichman, R

N1 - Conference code: 53

PY - 2001

Y1 - 2001

N2 - Transmit diversity techniques provide attractive solutions for increasing downlink capacity in 3G systems within low-mobility environments. Open-loop and closed-loop transmit diversity modes with two transmit antennas have already been included into 3GPP WCDMA Release 4, and at the moment schemes exploiting a larger number of transmit antennas are being developed.This paper analyzes the performance of the 3GPP WCDMA closed-loop modes in multipath Rayleigh fading channels. We use signal-to-noise ratio (SNR) gain as a performance measure, which corresponds to the gain in expected SNR when feedback information from the receiver is applied in the transmitter.

AB - Transmit diversity techniques provide attractive solutions for increasing downlink capacity in 3G systems within low-mobility environments. Open-loop and closed-loop transmit diversity modes with two transmit antennas have already been included into 3GPP WCDMA Release 4, and at the moment schemes exploiting a larger number of transmit antennas are being developed.This paper analyzes the performance of the 3GPP WCDMA closed-loop modes in multipath Rayleigh fading channels. We use signal-to-noise ratio (SNR) gain as a performance measure, which corresponds to the gain in expected SNR when feedback information from the receiver is applied in the transmitter.

U2 - 10.1109/VETECS.2001.944839

DO - 10.1109/VETECS.2001.944839

M3 - Conference article in proceedings

SN - 0-7803-6728-6

T3 - IEEE VTS Vehicular Technology Conference Proceedings

SP - 238

EP - 242

BT - IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS

PB - IEEE

T2 - IEEE Vehicular Technology Conference

Y2 - 6 May 2001 through 9 May 2001

ER -

Feedback schemes for FDD WCDMA systems in multipath environments

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