Overcoming time-varying co-channel interference using type-2 fuzzy adaptive filters
IEEE Transactions on Circuits and Systems II Analog and Digital Signal ProcessingPublished 1 January 2000
Qilian Liang, Jerry M. Mendel
Citations76
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TL;DR
A method for overcoming time-varying co-channel interference (CCI) using type-2 fuzzy adaptive filters (FAF) and uses transversal equalizer and decision feedback equalizer structures to eliminate the CCI.
Abstract
This paper presents a method for overcoming time-varying co-channel interference (CCI) using type-2 fuzzy adaptive filters (FAF). The type-2 FAF is realized using an unnormalized type-2 Takagi-Sugeno-Kang fuzzy logic system. A clustering method is used to adaptively design the parameters of the FAF. We use transversal equalizer and decision feedback equalizer structures to eliminate the CCI. Simulation results show that the equalizers based on type-2 FAFs perform better than the nearest neighbor classifiers or the equalizers based on type-1 FAFs when the number of co-channels is much large than 1.
Keywords
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