Unique Word Prefix in SC/FDE and OFDM: A Comparison

Mario Huemer; Christian Hofbauer; Johannes B. Huber

doi:10.1109/GLOCOMW.2010.5700147

Unique Word Prefix in SC/FDE and OFDM: A Comparison

Mario Huemer, Christian Hofbauer, Johannes B. Huber

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

Abstract

The concept of using unique word (UW) prefixes instead of cyclic prefixes (CPs) is already well investigated for single carrier systems with frequency domain equalization (SC/FDE). In OFDM (orthogonal frequency division multiplexing), where the data symbols are specified in frequency domain, the introduction of UWs - which are specified in time domain - is not that straight forward. In this paper we show how unique words can also be introduced in OFDM symbols. In OFDM our proposed method introduces correlations between subcarrier symbols. This allows to apply a highly efficient LMMSE (linear minimum mean square error) receiver. Throughout this paper we discuss the similarities and differences of UW-SC/FDE and UW-OFDM transmitter/receiver processing, and we present simulation results in indoor multipath environments.

Original language	American English
Title of host publication	2010 IEEE Globecom Workshops
Publisher	IEEE Computer Society
Pages	1296-1301
Number of pages	6
ISBN (Print)	978-1-4244-8864-3
DOIs	https://doi.org/10.1109/GLOCOMW.2010.5700147
Publication status	Published - 10 Dec 2010
Externally published	Yes
Event	2010 IEEE Globecom Workshops - Miami, FL, USA Duration: 6 Dec 2010 → 10 Dec 2010

Conference

Conference	2010 IEEE Globecom Workshops
Period	6/12/10 → 10/12/10

Keywords

OFDM
Frequency domain analysis
Receivers
Time domain analysis
Equalizers
Simulation
Phase shift keying

Access to Document

10.1109/GLOCOMW.2010.5700147

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5700147

Cite this

@inproceedings{29888708a57346e3903669ee0f48e438,

title = "Unique Word Prefix in SC/FDE and OFDM: A Comparison",

abstract = "The concept of using unique word (UW) prefixes instead of cyclic prefixes (CPs) is already well investigated for single carrier systems with frequency domain equalization (SC/FDE). In OFDM (orthogonal frequency division multiplexing), where the data symbols are specified in frequency domain, the introduction of UWs - which are specified in time domain - is not that straight forward. In this paper we show how unique words can also be introduced in OFDM symbols. In OFDM our proposed method introduces correlations between subcarrier symbols. This allows to apply a highly efficient LMMSE (linear minimum mean square error) receiver. Throughout this paper we discuss the similarities and differences of UW-SC/FDE and UW-OFDM transmitter/receiver processing, and we present simulation results in indoor multipath environments.",

keywords = "OFDM, Frequency domain analysis, Receivers, Time domain analysis, Equalizers, Simulation, Phase shift keying",

author = "Mario Huemer and Christian Hofbauer and Huber, {Johannes B.}",

year = "2010",

month = dec,

day = "10",

doi = "10.1109/GLOCOMW.2010.5700147",

language = "Englisch (Amerika)",

isbn = "978-1-4244-8864-3",

pages = "1296--1301",

booktitle = "2010 IEEE Globecom Workshops",

publisher = "IEEE Computer Society",

address = "USA/Vereinigte Staaten",

note = "2010 IEEE Globecom Workshops ; Conference date: 06-12-2010 Through 10-12-2010",

}

TY - GEN

T1 - Unique Word Prefix in SC/FDE and OFDM: A Comparison

AU - Huemer, Mario

AU - Hofbauer, Christian

AU - Huber, Johannes B.

PY - 2010/12/10

Y1 - 2010/12/10

N2 - The concept of using unique word (UW) prefixes instead of cyclic prefixes (CPs) is already well investigated for single carrier systems with frequency domain equalization (SC/FDE). In OFDM (orthogonal frequency division multiplexing), where the data symbols are specified in frequency domain, the introduction of UWs - which are specified in time domain - is not that straight forward. In this paper we show how unique words can also be introduced in OFDM symbols. In OFDM our proposed method introduces correlations between subcarrier symbols. This allows to apply a highly efficient LMMSE (linear minimum mean square error) receiver. Throughout this paper we discuss the similarities and differences of UW-SC/FDE and UW-OFDM transmitter/receiver processing, and we present simulation results in indoor multipath environments.

AB - The concept of using unique word (UW) prefixes instead of cyclic prefixes (CPs) is already well investigated for single carrier systems with frequency domain equalization (SC/FDE). In OFDM (orthogonal frequency division multiplexing), where the data symbols are specified in frequency domain, the introduction of UWs - which are specified in time domain - is not that straight forward. In this paper we show how unique words can also be introduced in OFDM symbols. In OFDM our proposed method introduces correlations between subcarrier symbols. This allows to apply a highly efficient LMMSE (linear minimum mean square error) receiver. Throughout this paper we discuss the similarities and differences of UW-SC/FDE and UW-OFDM transmitter/receiver processing, and we present simulation results in indoor multipath environments.

KW - OFDM

KW - Frequency domain analysis

KW - Receivers

KW - Time domain analysis

KW - Equalizers

KW - Simulation

KW - Phase shift keying

UR - https://ieeexplore.ieee.org/document/5700147/

U2 - 10.1109/GLOCOMW.2010.5700147

DO - 10.1109/GLOCOMW.2010.5700147

M3 - Konferenzartikel

SN - 978-1-4244-8864-3

SP - 1296

EP - 1301

BT - 2010 IEEE Globecom Workshops

PB - IEEE Computer Society

T2 - 2010 IEEE Globecom Workshops

Y2 - 6 December 2010 through 10 December 2010

ER -

Unique Word Prefix in SC/FDE and OFDM: A Comparison

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Keywords

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