Comparison of time and frequency domain interpolation implementations for MB-OFDM UWB transmitters

This paper investigates the effect of time-domain (TD) and frequency-domain (FD) interpolation on the performance of a Multi-Band (MB) Orthogonal Frequency Division Multiplexing (OFDM) Ultra-Wideband (UWB) system. We introduce a FD interpolator implemented by a radix-8 512-point IFFT architecture fo...

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Hauptverfasser:	Fotopoulou, E, Thanou, D, Stouraitis, T
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Computational complexity Computational modeling Computer architecture Finite impulse response filter Frequency domain analysis Interpolation OFDM Time domain analysis Transmitters Ultra wideband technology
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creator	Fotopoulou, E Thanou, D Stouraitis, T
description	This paper investigates the effect of time-domain (TD) and frequency-domain (FD) interpolation on the performance of a Multi-Band (MB) Orthogonal Frequency Division Multiplexing (OFDM) Ultra-Wideband (UWB) system. We introduce a FD interpolator implemented by a radix-8 512-point IFFT architecture for applications on MB-OFDM UWB transmitters. For the specific application where the interpolation factor is fixed to four, the FD interpolator outperforms the TD interpolator implemented with digital low-pass FIR filters in terms of computational complexity. On the other hand simulation results show that FD implementation degrades the overall system performance for certain UWB channels.
doi_str_mv	10.1109/ISCAS.2010.5536948
format	Conference Proceeding
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subjects	Computational complexity Computational modeling Computer architecture Finite impulse response filter Frequency domain analysis Interpolation OFDM Time domain analysis Transmitters Ultra wideband technology
title	Comparison of time and frequency domain interpolation implementations for MB-OFDM UWB transmitters
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