Performance analysis of a pre-FFT equalizer design for DVB-T

SMD Armour; AR Nix; David Bull

doi:10.1109/ICCE.1999.785173

Abstract

Conventional OFDM employs a guard interval to combat delay spread distortion of transmitted data. This reduces the efficiency of the OFDM transmission. The combined OFDM-Equalization strategy described here employs an Adaptive Equalizer to combat delay spread distortion and thereby facilitates the use of very short guard intervals and thus a more efficient OFDM modulation scheme. The OFDM receiver and the equalizer are described and performance is simulated for transmission in a multipath radio environment. It is shown that the combined OFDM Equalization method offers improved bandwidth eflciency over the conventional method but performance is sensitive to additive noise.

Original language	English
Pages	72 - 73
DOIs	https://doi.org/10.1109/ICCE.1999.785173
Publication status	Published - Jun 1999

Bibliographical note

Terms of use: Copyright © 1999 IEEE. Reprinted from Proceedings of International Conference on Consumer Electronics, 1999. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Name of Conference: International Conference on Consumer Electronics (ICCE)

Keywords

modulation
OFDM-Equalization

Access to Document

10.1109/ICCE.1999.785173

Armour IEEE ICCE 1999Accepted author manuscript, 170 KB

http://hdl.handle.net/1983/201

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Cite this

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title = "Performance analysis of a pre-FFT equalizer design for DVB-T",

abstract = "Conventional OFDM employs a guard interval to combat delay spread distortion of transmitted data. This reduces the efficiency of the OFDM transmission. The combined OFDM-Equalization strategy described here employs an Adaptive Equalizer to combat delay spread distortion and thereby facilitates the use of very short guard intervals and thus a more efficient OFDM modulation scheme. The OFDM receiver and the equalizer are described and performance is simulated for transmission in a multipath radio environment. It is shown that the combined OFDM Equalization method offers improved bandwidth eflciency over the conventional method but performance is sensitive to additive noise.",

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N1 - Terms of use: Copyright © 1999 IEEE. Reprinted from Proceedings of International Conference on Consumer Electronics, 1999. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Name of Conference: International Conference on Consumer Electronics (ICCE)

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AB - Conventional OFDM employs a guard interval to combat delay spread distortion of transmitted data. This reduces the efficiency of the OFDM transmission. The combined OFDM-Equalization strategy described here employs an Adaptive Equalizer to combat delay spread distortion and thereby facilitates the use of very short guard intervals and thus a more efficient OFDM modulation scheme. The OFDM receiver and the equalizer are described and performance is simulated for transmission in a multipath radio environment. It is shown that the combined OFDM Equalization method offers improved bandwidth eflciency over the conventional method but performance is sensitive to additive noise.

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