A comparison of DFT and SVD based channel estimation in MIMO OFDM systems

Peter Hammarberg; Ove Edfors

doi:10.1109/PIMRC.2006.253938

A comparison of DFT and SVD based channel estimation in MIMO OFDM systems

Peter Hammarberg, Ove Edfors

Institutionen för elektro- och informationsteknik

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

192 Nedladdningar (Pure)

Sammanfattning

In this paper two simplified transform based estimators for MIMO OFDM systems using the DFT and an SVD based transform are compared over a tapped delay line channel model. In the resulting symbol error rate plots, it is seen that the DFT based estimator experiences an error floor caused by the mismatch between the discrete time model and a continuous time reality. This error floor becomes a problem at high SNR levels where high data-rate systems can be expected to operate. When using an SVD based estimator it is seen that this error floor is reduced at the cost of a somewhat increased estimator complexity

Originalspråk	engelska
Titel på värdpublikation	2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No. 06TH8881)
Förlag	IEEE - Institute of Electrical and Electronics Engineers Inc.
Antal sidor	5
ISBN (tryckt)	1-4244-0329-4
DOI	https://doi.org/10.1109/PIMRC.2006.253938
Status	Published - 2006
Evenemang	2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications - Helsinki, Finland Varaktighet: 2006 sep. 11 → 2006 sep. 14

Konferens

Konferens	2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications
Land/Territorium	Finland
Ort	Helsinki
Period	2006/09/11 → 2006/09/14

Ämnesklassifikation (UKÄ)

Elektroteknik och elektronik

Tillgång till dokument

10.1109/PIMRC.2006.253938

SVD_MIMO_PIMRC2006

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@inproceedings{be42193377044eefa50486b101d9f949,

title = "A comparison of DFT and SVD based channel estimation in MIMO OFDM systems",

abstract = "In this paper two simplified transform based estimators for MIMO OFDM systems using the DFT and an SVD based transform are compared over a tapped delay line channel model. In the resulting symbol error rate plots, it is seen that the DFT based estimator experiences an error floor caused by the mismatch between the discrete time model and a continuous time reality. This error floor becomes a problem at high SNR levels where high data-rate systems can be expected to operate. When using an SVD based estimator it is seen that this error floor is reduced at the cost of a somewhat increased estimator complexity",

keywords = "symbol error rate, tapped delay line channel model, orthogonal frequency division multiplexing, multiple input multiple output systems, MIMO OFDM systems, singular value decomposition, SVD based channel estimation, DFT based channel estimation, discrete Fourier transform, SNR, signal-to-noise ratio, high data-rate systems, discrete time model, continuous time reality",

author = "Peter Hammarberg and Ove Edfors",

year = "2006",

doi = "10.1109/PIMRC.2006.253938",

language = "English",

isbn = "1-4244-0329-4",

booktitle = "2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No. 06TH8881)",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications ; Conference date: 11-09-2006 Through 14-09-2006",

}

Hammarberg, P & Edfors, O 2006, A comparison of DFT and SVD based channel estimation in MIMO OFDM systems. i 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No. 06TH8881). IEEE - Institute of Electrical and Electronics Engineers Inc., 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, 2006/09/11. https://doi.org/10.1109/PIMRC.2006.253938

A comparison of DFT and SVD based channel estimation in MIMO OFDM systems. / Hammarberg, Peter; Edfors, Ove.
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No. 06TH8881). IEEE - Institute of Electrical and Electronics Engineers Inc., 2006.

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

TY - GEN

T1 - A comparison of DFT and SVD based channel estimation in MIMO OFDM systems

AU - Hammarberg, Peter

AU - Edfors, Ove

PY - 2006

Y1 - 2006

N2 - In this paper two simplified transform based estimators for MIMO OFDM systems using the DFT and an SVD based transform are compared over a tapped delay line channel model. In the resulting symbol error rate plots, it is seen that the DFT based estimator experiences an error floor caused by the mismatch between the discrete time model and a continuous time reality. This error floor becomes a problem at high SNR levels where high data-rate systems can be expected to operate. When using an SVD based estimator it is seen that this error floor is reduced at the cost of a somewhat increased estimator complexity

AB - In this paper two simplified transform based estimators for MIMO OFDM systems using the DFT and an SVD based transform are compared over a tapped delay line channel model. In the resulting symbol error rate plots, it is seen that the DFT based estimator experiences an error floor caused by the mismatch between the discrete time model and a continuous time reality. This error floor becomes a problem at high SNR levels where high data-rate systems can be expected to operate. When using an SVD based estimator it is seen that this error floor is reduced at the cost of a somewhat increased estimator complexity

KW - symbol error rate

KW - tapped delay line channel model

KW - orthogonal frequency division multiplexing

KW - multiple input multiple output systems

KW - MIMO OFDM systems

KW - singular value decomposition

KW - SVD based channel estimation

KW - DFT based channel estimation

KW - discrete Fourier transform

KW - SNR

KW - signal-to-noise ratio

KW - high data-rate systems

KW - discrete time model

KW - continuous time reality

U2 - 10.1109/PIMRC.2006.253938

DO - 10.1109/PIMRC.2006.253938

M3 - Paper in conference proceeding

SN - 1-4244-0329-4

BT - 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No. 06TH8881)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

Y2 - 11 September 2006 through 14 September 2006

ER -

A comparison of DFT and SVD based channel estimation in MIMO OFDM systems

Sammanfattning

Konferens

Ämnesklassifikation (UKÄ)

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