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

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

6 Citations (Scopus)

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
Publication status	Published - 7 Sept 2009

Keywords

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

ASJC Scopus subject areas

Electrical and Electronic Engineering
Signal Processing
Applied Mathematics

More information

10.1109/LSP.2009.2027647

Cite this

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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",

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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

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

Abstract

Keywords

ASJC Scopus subject areas

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