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2007
IEEE

Block Equalization for Single-Carrier Satellite Communications with High-Mobility Receivers

9 years 16 days ago
Block Equalization for Single-Carrier Satellite Communications with High-Mobility Receivers
Abstract—We compare some block equalizers for singlecarrier satellite systems subject to hard propagation conditions such as high Doppler spread, non-line-of-sight (NLOS), and nonnegligible multipath fading. These impairments are relevant when the very high speed of a mobile receiver forces to use a nondirectional antenna. First, we compare low-complexity timedomain and frequency-domain block equalizers. Then, we propose a novel frequency-domain equalizer based on a fast Fourier transform (FFT) with size higher than the length of the processed block. Thanks to the increased frequency resolution, the proposed equalizer yields improved performance with respect to the conventional frequency-domain equalizer. Simulation results validate the effectiveness of the proposed technique. Keywords—Frequency-domain equalization; Doppler spread; NLOS; multipath; satellite communications.
Luca Rugini, Paolo Banelli, Matteo Berioli
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where GLOBECOM
Authors Luca Rugini, Paolo Banelli, Matteo Berioli
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