On the Exploitation of the Redundant Energy in UW-OFDM: LMMSE Versus Sphere Detection

Mario Huemer; Christian Hofbauer; Alexander Onic; Johannes B. Huber

doi:10.1109/LSP.2012.2194737

On the Exploitation of the Redundant Energy in UW-OFDM: LMMSE Versus Sphere Detection

Mario Huemer, Christian Hofbauer, Alexander Onic, Johannes B. Huber

Research output: Contribution to journal › Article › peer-review

Abstract

Unique word orthogonal frequency division multiplexing (UW-OFDM) inherently introduces a complex number Reed Solomon (RS) code. Originally, the code generator matrix of systematic coded UW-OFDM had been designed rather intuitively by minimizing the mean redundant energy. In this work we justify this approach by applying a cost function that incorporates the overall transceiver chain including a linear minimum mean square error (LMMSE) data estimator. In addition to the LMMSE estimator we investigate a nonlinear sphere detection (SD) receiver for both systematic and nonsystematic coded UW-OFDM. We study and interpret the estimators' performance and their diverse ability to exploit the redundant energy.

Original language	German (Austria)
Article number	6184288
Pages (from-to)	340-343
Number of pages	4
Journal	IEEE Signal Processing Letters
Volume	19
Issue number	6
DOIs	https://doi.org/10.1109/LSP.2012.2194737
Publication status	Published - 1 Jun 2012
Externally published	Yes

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title = "On the Exploitation of the Redundant Energy in UW-OFDM: LMMSE Versus Sphere Detection",

abstract = "Unique word orthogonal frequency division multiplexing (UW-OFDM) inherently introduces a complex number Reed Solomon (RS) code. Originally, the code generator matrix of systematic coded UW-OFDM had been designed rather intuitively by minimizing the mean redundant energy. In this work we justify this approach by applying a cost function that incorporates the overall transceiver chain including a linear minimum mean square error (LMMSE) data estimator. In addition to the LMMSE estimator we investigate a nonlinear sphere detection (SD) receiver for both systematic and nonsystematic coded UW-OFDM. We study and interpret the estimators' performance and their diverse ability to exploit the redundant energy.",

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AU - Huemer, Mario

AU - Hofbauer, Christian

AU - Onic, Alexander

AU - Huber, Johannes B.

PY - 2012/6/1

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N2 - Unique word orthogonal frequency division multiplexing (UW-OFDM) inherently introduces a complex number Reed Solomon (RS) code. Originally, the code generator matrix of systematic coded UW-OFDM had been designed rather intuitively by minimizing the mean redundant energy. In this work we justify this approach by applying a cost function that incorporates the overall transceiver chain including a linear minimum mean square error (LMMSE) data estimator. In addition to the LMMSE estimator we investigate a nonlinear sphere detection (SD) receiver for both systematic and nonsystematic coded UW-OFDM. We study and interpret the estimators' performance and their diverse ability to exploit the redundant energy.

AB - Unique word orthogonal frequency division multiplexing (UW-OFDM) inherently introduces a complex number Reed Solomon (RS) code. Originally, the code generator matrix of systematic coded UW-OFDM had been designed rather intuitively by minimizing the mean redundant energy. In this work we justify this approach by applying a cost function that incorporates the overall transceiver chain including a linear minimum mean square error (LMMSE) data estimator. In addition to the LMMSE estimator we investigate a nonlinear sphere detection (SD) receiver for both systematic and nonsystematic coded UW-OFDM. We study and interpret the estimators' performance and their diverse ability to exploit the redundant energy.

KW - OFDM

KW - Frequency domain analysis

KW - Time domain analysis

KW - Estimation

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DO - 10.1109/LSP.2012.2194737

M3 - Artikel

SN - 1558-2361

VL - 19

SP - 340

EP - 343

JO - IEEE Signal Processing Letters

JF - IEEE Signal Processing Letters

IS - 6

M1 - 6184288

ER -

On the Exploitation of the Redundant Energy in UW-OFDM: LMMSE Versus Sphere Detection

Abstract

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