Adaptive averaging channel estimation for DVB-T2 using Doppler Shift information

Spiridon Zettas, Pavlos I. Lazaridis, Zaharias D. Zaharis, Stylianos Kasampalis, John Cosmas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The problem of channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems in fast time-varying and frequency selective radio channels has attracted the attention of scientists and receiver manufacturers. The wireless communication suffers from Additive White Gaussian Noise (AWGN), fading due to the multipath nature of the channel and spectral dispersion caused by the relative movement of the receiver with respect to the transmitter. In this paper a novel channel estimator for the Next Generation Terrestrial Digital Video Broadcasting (DVB-T2) is proposed. It is based on the estimation of the Doppler Shift (DS) from the variations of the envelope of the edge pilots (EP), in order to estimate the time interval where the channel could be considered as flat and then adaptively adjusting a buffer where the scattered pilots (ScP) carried within the received OFDM symbols during this time interval, are stored and averaged. Because the noise is considered AWGN with zero mean, the averaging process discards the noise and by interpolating the pilots an estimation of the channel is obtained.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2014
PublisherIEEE Computer Society
ISBN (Print)9781479916542
DOIs
Publication statusPublished - 2014
EventIEEE International Symposium on Broadband Multimedia Systems and Broadcasting - Beijing, China
Duration: 25 Jun 201427 Jun 2014

Conference

ConferenceIEEE International Symposium on Broadband Multimedia Systems and Broadcasting
Abbreviated titleBMSB 2014
CountryChina
CityBeijing
Period25/06/1427/06/14

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Zettas, S., Lazaridis, P. I., Zaharis, Z. D., Kasampalis, S., & Cosmas, J. (2014). Adaptive averaging channel estimation for DVB-T2 using Doppler Shift information. In 2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2014 [6873519] IEEE Computer Society. https://doi.org/10.1109/BMSB.2014.6873519