Increasing the Bandwidth Efficiency in UW-OFDM

Oliver Lang; Carl Böck; Mario Huemer; Christian Hofbauer

doi:10.1109/IEEECONF44664.2019.9048927

Increasing the Bandwidth Efficiency in UW-OFDM

Oliver Lang, Carl Böck, Mario Huemer, Christian Hofbauer

Publikation: Konferenzband/Beitrag in Buch/Bericht › Konferenzartikel › Begutachtung

Abstract

Unique word orthogonal frequency-division multiplexing (UW-OFDM) prevents intersymbol interference by introducing a unique word (UW) at the tail of each symbol. Compared to cyclic prefix (CP)-OFDM, UW-OFDM in general features a better bit error ratio (BER) while having a slightly lower bandwidth efficiency. In this work, the constraints on the UW are weakened, with the dedicated goal to increase the system's bandwidth efficiency. We propose a modification of the so-called non-systematically encoded UW-OFDM scheme that enables an increase of the bandwidth efficiency by around 5%. The effects of the proposed modifications on the BER as well as on several other performance measures are analyzed.

Originalsprache	Englisch
Titel	2019 53rd Asilomar Conference on Signals, Systems, and Computers
Herausgeber (Verlag)	IEEE Computer Society
Seiten	1857-1861
Seitenumfang	5
ISBN (Print)	978-1-7281-4301-9
DOIs	https://doi.org/10.1109/IEEECONF44664.2019.9048927
Publikationsstatus	Veröffentlicht - 6 Nov. 2019
Veranstaltung	2019 53rd Asilomar Conference on Signals, Systems, and Computers - Pacific Grove, CA, USA Dauer: 3 Nov. 2019 → 6 Nov. 2019

Konferenz

Konferenz	2019 53rd Asilomar Conference on Signals, Systems, and Computers
Zeitraum	3/11/19 → 6/11/19

Schlagwörter

Systematics
Bandwidth
OFDM
Generators
Cost function
Distortion
Time-domain analysis

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10.1109/IEEECONF44664.2019.9048927

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9048927

Andere Dateien und Links

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abstract = "Unique word orthogonal frequency-division multiplexing (UW-OFDM) prevents intersymbol interference by introducing a unique word (UW) at the tail of each symbol. Compared to cyclic prefix (CP)-OFDM, UW-OFDM in general features a better bit error ratio (BER) while having a slightly lower bandwidth efficiency. In this work, the constraints on the UW are weakened, with the dedicated goal to increase the system's bandwidth efficiency. We propose a modification of the so-called non-systematically encoded UW-OFDM scheme that enables an increase of the bandwidth efficiency by around 5%. The effects of the proposed modifications on the BER as well as on several other performance measures are analyzed.",

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author = "Oliver Lang and Carl B{\"o}ck and Mario Huemer and Christian Hofbauer",

year = "2019",

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doi = "10.1109/IEEECONF44664.2019.9048927",

language = "English",

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T1 - Increasing the Bandwidth Efficiency in UW-OFDM

AU - Lang, Oliver

AU - Böck, Carl

AU - Huemer, Mario

AU - Hofbauer, Christian

PY - 2019/11/6

Y1 - 2019/11/6

N2 - Unique word orthogonal frequency-division multiplexing (UW-OFDM) prevents intersymbol interference by introducing a unique word (UW) at the tail of each symbol. Compared to cyclic prefix (CP)-OFDM, UW-OFDM in general features a better bit error ratio (BER) while having a slightly lower bandwidth efficiency. In this work, the constraints on the UW are weakened, with the dedicated goal to increase the system's bandwidth efficiency. We propose a modification of the so-called non-systematically encoded UW-OFDM scheme that enables an increase of the bandwidth efficiency by around 5%. The effects of the proposed modifications on the BER as well as on several other performance measures are analyzed.

AB - Unique word orthogonal frequency-division multiplexing (UW-OFDM) prevents intersymbol interference by introducing a unique word (UW) at the tail of each symbol. Compared to cyclic prefix (CP)-OFDM, UW-OFDM in general features a better bit error ratio (BER) while having a slightly lower bandwidth efficiency. In this work, the constraints on the UW are weakened, with the dedicated goal to increase the system's bandwidth efficiency. We propose a modification of the so-called non-systematically encoded UW-OFDM scheme that enables an increase of the bandwidth efficiency by around 5%. The effects of the proposed modifications on the BER as well as on several other performance measures are analyzed.

KW - Systematics

KW - Bandwidth

KW - OFDM

KW - Generators

KW - Cost function

KW - Distortion

KW - Time-domain analysis

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U2 - 10.1109/IEEECONF44664.2019.9048927

DO - 10.1109/IEEECONF44664.2019.9048927

M3 - Conference Paper

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SP - 1857

EP - 1861

BT - 2019 53rd Asilomar Conference on Signals, Systems, and Computers

PB - IEEE Computer Society

T2 - 2019 53rd Asilomar Conference on Signals, Systems, and Computers

Y2 - 3 November 2019 through 6 November 2019

ER -

Increasing the Bandwidth Efficiency in UW-OFDM

Abstract

Konferenz

Schlagwörter

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