Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length

Tanja Karp; Carsten Bauer; Norbert J. Fliege

Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length

Tanja Karp, Carsten Bauer, Norbert J. Fliege

Electrical and Computer Engineering

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

1 Scopus citations

Abstract

In this paper we consider a DMT transceiver with a guard interval of insufficient length. We describe an algorithm that estimates the channel impulse response correctly independently of its length while keeping the guard interval at the preset length. The training sequence is designed such that inter-symbol and inter-carrier interference cancel. We then show that calculating the one-tap equalizer per subcarrier as the inverse of the channel frequency response at the subcarrier frequency is not optimal in presence of interference. We also propose an improved bitloading algorithm based on measured signal-to-noise-and- interference ratios.

Original language	English
Title of host publication	2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
Pages	196-200
Number of pages	5
State	Published - 2004
Event	2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop - Taos Ski Valley, NM, United States Duration: Aug 1 2004 → Aug 4 2004

Publication series

Name	2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop

Conference

Conference	2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
Country/Territory	United States
City	Taos Ski Valley, NM
Period	08/1/04 → 08/4/04

Cite this

Karp, T., Bauer, C., & Fliege, N. J. (2004). Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length. In 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop (pp. 196-200). (2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop).

Karp, Tanja ; Bauer, Carsten ; Fliege, Norbert J. / Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length. 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop. 2004. pp. 196-200 (2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop).

@inproceedings{2208d6f7d3ff473e82156549cb5a47f7,

title = "Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length",

abstract = "In this paper we consider a DMT transceiver with a guard interval of insufficient length. We describe an algorithm that estimates the channel impulse response correctly independently of its length while keeping the guard interval at the preset length. The training sequence is designed such that inter-symbol and inter-carrier interference cancel. We then show that calculating the one-tap equalizer per subcarrier as the inverse of the channel frequency response at the subcarrier frequency is not optimal in presence of interference. We also propose an improved bitloading algorithm based on measured signal-to-noise-and- interference ratios.",

author = "Tanja Karp and Carsten Bauer and Fliege, {Norbert J.}",

year = "2004",

language = "English",

isbn = "0780384342",

series = "2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop",

pages = "196--200",

booktitle = "2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop",

note = "2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop ; Conference date: 01-08-2004 Through 04-08-2004",

}

Karp, T, Bauer, C & Fliege, NJ 2004, Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length. in 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop. 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop, pp. 196-200, 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop, Taos Ski Valley, NM, United States, 08/1/04.

Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length. / Karp, Tanja; Bauer, Carsten; Fliege, Norbert J.
2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop. 2004. p. 196-200 (2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop).

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

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AU - Fliege, Norbert J.

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N2 - In this paper we consider a DMT transceiver with a guard interval of insufficient length. We describe an algorithm that estimates the channel impulse response correctly independently of its length while keeping the guard interval at the preset length. The training sequence is designed such that inter-symbol and inter-carrier interference cancel. We then show that calculating the one-tap equalizer per subcarrier as the inverse of the channel frequency response at the subcarrier frequency is not optimal in presence of interference. We also propose an improved bitloading algorithm based on measured signal-to-noise-and- interference ratios.

AB - In this paper we consider a DMT transceiver with a guard interval of insufficient length. We describe an algorithm that estimates the channel impulse response correctly independently of its length while keeping the guard interval at the preset length. The training sequence is designed such that inter-symbol and inter-carrier interference cancel. We then show that calculating the one-tap equalizer per subcarrier as the inverse of the channel frequency response at the subcarrier frequency is not optimal in presence of interference. We also propose an improved bitloading algorithm based on measured signal-to-noise-and- interference ratios.

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M3 - Conference contribution

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T3 - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop

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BT - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop

T2 - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop

Y2 - 1 August 2004 through 4 August 2004

ER -

Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length

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