Intersymbol and intercarrier interference canceller for multi-carrier modulation receivers

Multi-carrier modulation receivers are susceptible to performance degradation due to intersymbol and intercarrier interference. We present a scheme that modifies the conventional single-tap frequency-domain equalizer into a multi-tap equalizer that can be used to cancel both intersymbol and intercar...

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Bibliographic Details
Published in2006 IEEE International Symposium on Circuits and Systems (ISCAS) p. 4 pp.
Main Authors Heng-Cheng Yeh, Leon Lin
Format Conference Proceeding
LanguageEnglish
Published IEEE 2006
Subjects
Computational efficiency
Degradation
Equalizers
Fast Fourier transforms
Interference cancellation
Intersymbol interference
OFDM modulation
Redundancy
Signal to noise ratio
Time domain analysis
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Summary:Multi-carrier modulation receivers are susceptible to performance degradation due to intersymbol and intercarrier interference. We present a scheme that modifies the conventional single-tap frequency-domain equalizer into a multi-tap equalizer that can be used to cancel both intersymbol and intercarrier interference while preserving the function of the channel equalization. We demonstrate a method to obtain the optimal coefficients that maximizes the signal-to-noise ratio for each tone. The proposed scheme can be incorporated straightforwardly into conventional multi-carrier modulation receivers, while offering flexibility to allow tradeoff between performance and computation cost
ISBN:0780393899
9780780393899
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2006.1692901