کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
562750 875434 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Zero-padding or cyclic prefix for MDFT-based filter bank multicarrier communications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Zero-padding or cyclic prefix for MDFT-based filter bank multicarrier communications
چکیده انگلیسی

In this paper, the problem of channel equalization in modified discrete Fourier transform (MDFT)-based filter-bank multicarrier system (FBMC) is addressed. Two different system models based on padding zeros or using cyclic prefix in each transmitted block are presented. The proposed systems utilize IFFT/FFT blocks embedded in an MDFT-FBMC system. In the first one, an equalization block similar to single-carrier systems is included as the first stage in the receiver. The second system basically consists of an OFDM embedded in the MDFT-based transmultiplexer (TMUX). For both systems, the channel equalization is performed at the receiver in the frequency-domain by using a one-tap per subcarrier equalizer. Finally, several simulation results obtained in different scenarios are presented to assess the performance of the proposed systems compared to the standardized DFT-based systems (OFDM).


► The problem of channel equalization in MDFT-based filter-bank multicarrier system is addressed.
► Two different system models based on padding zeros or using cyclic prefix are presented.
► The proposed systems utilize IFFT/FFT blocks embedded in an MDFT-FBMC system.
► The channel equalization is performed by using a one-tap per subcarrier equalizer.
► Simulation results show that the proposed systems can outperform DFT-based systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 92, Issue 7, July 2012, Pages 1646–1657
نویسندگان
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