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2007•Journal of Zhejiang University(Science Edition)Requires access

Equalizer design in frequency domain of SC-FDE system

Chen Xie-xiong

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Abstract

Having introduced the distinguishing feature and mechanism of single-carrier with frequency domain equalizer(SC-FDE) system,several kinds of equalizer structure in frequency domain which are suitable for SC-FDE system are proposed,such as zero forcing equalizer,minimum mean square error equalizer,least square equalizer,minimum mean square error-decision feedback equalizer,adaptive frequency domain equalizer and adaptive equalizer with the signal processing method by OFDM.Furthermore,by using performance simulations on Matlab platform under SUI-3 and SUI-5 channels respectively,those equalizers are compared and some meaningful conclusions have been made.

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What this paper is about

Having introduced the distinguishing feature and mechanism of single-carrier with frequency domain equalizer(SC-FDE) system,several kinds of equalizer structure in frequency domain which are suitable for SC-FDE system are proposed,such as zero forcing equalizer,minimum mean square error equalizer,least square equalizer,minimum mean square error-decision feedback equalizer,adaptive frequency domain equalizer and adaptive equalizer with the signal processing method by OFDM.Furthermore,by using performance simulations on Matlab platform under SUI-3 and SUI-5 channels respectively,those equalizers are compared and some meaningful conclusions have been made.

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Available abstract

Having introduced the distinguishing feature and mechanism of single-carrier with frequency domain equalizer(SC-FDE) system,several kinds of equalizer structure in frequency domain which are suitable for SC-FDE system are proposed,such as zero forcing equalizer,minimum mean square error equalizer,least square equalizer,minimum mean square error-decision feedback equalizer,adaptive frequency domain equalizer and adaptive equalizer with the signal processing method by OFDM.Furthermore,by using performance simulations on Matlab platform under SUI-3 and SUI-5 channels respectively,those equalizers are compared and some meaningful conclusions have been made.

Key concepts: Adaptive equalizer, Equalizer, Frequency domain, SC-FDE, Least mean squares filter, Computer science, Minimum mean square error, Orthogonal frequency-division multiplexing

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