A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems

Yung An Kao; Ming Yuan Hsiao

doi:10.1109/CSQRWC.2011.6037283

A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems

Yung An Kao^*, Ming Yuan Hsiao

^*Corresponding author for this work

Department of Electrical Engineering

Chang Gung University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

In this paper, the low-density parity-check (LDPC) code decoder with aided channel state information (CSI) for an OFDM based system is presented. The CSI on different subcarriers are obtained from the one-tap frequency domain equalizer based on the modified RLS algorithm. Compare to channel estimation only by training symbols with the conventional decoding method of min-sum algorithm, the proposed method with the same decoding algorithm has better performance because it adopt the adaptive equalizer and decode with CSI which represent different reliabilities on subcarriers.

Original language	English
Title of host publication	Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
Pages	1615-1618
Number of pages	4
DOIs	https://doi.org/10.1109/CSQRWC.2011.6037283
State	Published - 2011
Event	2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011 - Harbin, China Duration: 27 07 2011 → 30 07 2011

Publication series

Name	Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
Volume	2

Conference

Conference	2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011
Country/Territory	China
City	Harbin
Period	27/07/11 → 30/07/11

Keywords

CSI
LDPC
OFDM
RLS
min-sum

Access to Document

10.1109/CSQRWC.2011.6037283

Cite this

Kao, Y. A., & Hsiao, M. Y. (2011). A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems. In Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011 (pp. 1615-1618). Article 6037283 (Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011; Vol. 2). https://doi.org/10.1109/CSQRWC.2011.6037283

Kao, Yung An ; Hsiao, Ming Yuan. / A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems. Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011. 2011. pp. 1615-1618 (Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011).

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title = "A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems",

abstract = "In this paper, the low-density parity-check (LDPC) code decoder with aided channel state information (CSI) for an OFDM based system is presented. The CSI on different subcarriers are obtained from the one-tap frequency domain equalizer based on the modified RLS algorithm. Compare to channel estimation only by training symbols with the conventional decoding method of min-sum algorithm, the proposed method with the same decoding algorithm has better performance because it adopt the adaptive equalizer and decode with CSI which represent different reliabilities on subcarriers.",

keywords = "CSI, LDPC, OFDM, RLS, min-sum",

author = "Kao, {Yung An} and Hsiao, {Ming Yuan}",

year = "2011",

doi = "10.1109/CSQRWC.2011.6037283",

language = "英语",

isbn = "9781424497904",

series = "Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011",

pages = "1615--1618",

booktitle = "Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011",

note = "2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011 ; Conference date: 27-07-2011 Through 30-07-2011",

}

Kao, YA & Hsiao, MY 2011, A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems. in Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011., 6037283, Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011, vol. 2, pp. 1615-1618, 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011, Harbin, China, 27/07/11. https://doi.org/10.1109/CSQRWC.2011.6037283

A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems. / Kao, Yung An; Hsiao, Ming Yuan.
Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011. 2011. p. 1615-1618 6037283 (Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hsiao, Ming Yuan

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Y1 - 2011

N2 - In this paper, the low-density parity-check (LDPC) code decoder with aided channel state information (CSI) for an OFDM based system is presented. The CSI on different subcarriers are obtained from the one-tap frequency domain equalizer based on the modified RLS algorithm. Compare to channel estimation only by training symbols with the conventional decoding method of min-sum algorithm, the proposed method with the same decoding algorithm has better performance because it adopt the adaptive equalizer and decode with CSI which represent different reliabilities on subcarriers.

AB - In this paper, the low-density parity-check (LDPC) code decoder with aided channel state information (CSI) for an OFDM based system is presented. The CSI on different subcarriers are obtained from the one-tap frequency domain equalizer based on the modified RLS algorithm. Compare to channel estimation only by training symbols with the conventional decoding method of min-sum algorithm, the proposed method with the same decoding algorithm has better performance because it adopt the adaptive equalizer and decode with CSI which represent different reliabilities on subcarriers.

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KW - LDPC

KW - OFDM

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KW - min-sum

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Kao YA, Hsiao MY. A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems. In Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011. 2011. p. 1615-1618. 6037283. (Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011). doi: 10.1109/CSQRWC.2011.6037283

A one-tap frequency domain modified RLS equalizer combined with LDPC decoder using channel state information in OFDM systems

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