Particle filtering to combat inter-carrier interference in mobile communications |
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Authors: | Alex Palamides Andreas Maras |
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Affiliation: | (1) Department of Communication Sciences, School of Applied Sciences and Technology, University of Peloponnese, 22100 Tripolis, Greece |
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Abstract: | This paper deals with the effect of the Doppler spread in a mobile communication system. The Doppler effect in a moving mobile
is computed by predicting the mobile velocity via particle filtering, an instance of Sequential Monte Carlo (SMC) filtering.
By calculating the Doppler spread in the receiver and adjusting the transmitter in the appropriate frequency, the performance
of communication systems, such as Orthogonal frequency division multiplexing (OFDM) which suffer from loss of orthogonality
due to frequency offset, can be improved. Moreover, it is shown that, via performance comparison of OFDM between the compensated
and un-compensated for Doppler shift cases, a substantial improvement (O(10−1)) can be achieved in terms of Bit-Error-Rate (BER) for expectedly large values of Signal to Noise Ratio (SNR) |
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Keywords: | Doppler spread Frequency offset OFDM Sequential Monte Carlo Particle filtering Target tracking |
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