Interference suppression for OFDM systems with insufficient guard interval using null subcarriers

Yin Ray Huang; Carrson C. Fung; Kainam Thomas Wong

doi:10.1109/LSP.2009.2027647

Interference suppression for OFDM systems with insufficient guard interval using null subcarriers

Yin Ray Huang^*, Carrson C. Fung, Kainam Thomas Wong

^*Corresponding author for this work

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

6 Scopus citations

Abstract

Herein proposed is a new frequency domain equalizer (FEQ) to suppress channel induced interference such as ICI and ISI, co-channel interference, and overlaid systems interference. Unlike earlier schemes, this proposed algorithm requires no temporal oversampling nor the use of more than one receive antenna. All the above is achieved by exploiting null subcarriers (a.k.a. virtual/unused/unmodulated subcarriers) inherent in standard multicarrier systems, and by a generalized sidelobe cancellation (GSC) like scheme. This proposed method can offer superior bit error rate over earlier methods as well as simpler computations over another GSC-like scheme.

Original language	English
Pages (from-to)	929-932
Number of pages	4
Journal	IEEE Signal Processing Letters
Volume	16
Issue number	11
DOIs	https://doi.org/10.1109/LSP.2009.2027647
State	Published - 2009

Keywords

Co-channel interference
Equalizers
FEQ
Insufficient guard interval
Interchannel interference
Interference suppression
Null subcarrier
OFDM

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10.1109/LSP.2009.2027647

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title = "Interference suppression for OFDM systems with insufficient guard interval using null subcarriers",

abstract = "Herein proposed is a new frequency domain equalizer (FEQ) to suppress channel induced interference such as ICI and ISI, co-channel interference, and overlaid systems interference. Unlike earlier schemes, this proposed algorithm requires no temporal oversampling nor the use of more than one receive antenna. All the above is achieved by exploiting null subcarriers (a.k.a. virtual/unused/unmodulated subcarriers) inherent in standard multicarrier systems, and by a generalized sidelobe cancellation (GSC) like scheme. This proposed method can offer superior bit error rate over earlier methods as well as simpler computations over another GSC-like scheme.",

keywords = "Co-channel interference, Equalizers, FEQ, Insufficient guard interval, Interchannel interference, Interference suppression, Null subcarrier, OFDM",

author = "Huang, {Yin Ray} and Fung, {Carrson C.} and Wong, {Kainam Thomas}",

year = "2009",

doi = "10.1109/LSP.2009.2027647",

language = "English",

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journal = "IEEE Signal Processing Letters",

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T1 - Interference suppression for OFDM systems with insufficient guard interval using null subcarriers

AU - Huang, Yin Ray

AU - Fung, Carrson C.

AU - Wong, Kainam Thomas

PY - 2009

Y1 - 2009

N2 - Herein proposed is a new frequency domain equalizer (FEQ) to suppress channel induced interference such as ICI and ISI, co-channel interference, and overlaid systems interference. Unlike earlier schemes, this proposed algorithm requires no temporal oversampling nor the use of more than one receive antenna. All the above is achieved by exploiting null subcarriers (a.k.a. virtual/unused/unmodulated subcarriers) inherent in standard multicarrier systems, and by a generalized sidelobe cancellation (GSC) like scheme. This proposed method can offer superior bit error rate over earlier methods as well as simpler computations over another GSC-like scheme.

AB - Herein proposed is a new frequency domain equalizer (FEQ) to suppress channel induced interference such as ICI and ISI, co-channel interference, and overlaid systems interference. Unlike earlier schemes, this proposed algorithm requires no temporal oversampling nor the use of more than one receive antenna. All the above is achieved by exploiting null subcarriers (a.k.a. virtual/unused/unmodulated subcarriers) inherent in standard multicarrier systems, and by a generalized sidelobe cancellation (GSC) like scheme. This proposed method can offer superior bit error rate over earlier methods as well as simpler computations over another GSC-like scheme.

KW - Co-channel interference

KW - Equalizers

KW - FEQ

KW - Insufficient guard interval

KW - Interchannel interference

KW - Interference suppression

KW - Null subcarrier

KW - OFDM

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DO - 10.1109/LSP.2009.2027647

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SP - 929

EP - 932

JO - IEEE Signal Processing Letters

JF - IEEE Signal Processing Letters

IS - 11

ER -

Interference suppression for OFDM systems with insufficient guard interval using null subcarriers

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