Iterative based time domain equalization method for OFDM signal under high mobile environments

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dc.contributor.authorReangsuntea, Pongsathorn
dc.contributor.authorMori, Kazuo
dc.contributor.authorKobayashi, Hideo
dc.contributor.authorBoonsrimuang, Pisit
dc.date.accessioned2026-08-06T10:09:32Z
dc.date.available2026-08-06T10:09:32Z
dc.date.issued2014-01-23
dc.description.abstractA loss of subcarrier orthogonality in orthogonal frequency division multiplexing (OFDM) signal due to time-varying multipath fading channel causes an inter-carrier interference (ICI) which would lead fatal degradation of bit error rate (BER) performance. To solve this problem, this paper proposes a high accuracy time domain channel impulse response (CIR) estimation method and a time domain equalization (TDE) method of using estimated CIR at every sampling time in conjunction with a low-complexity iterative method instead of using an inverse matrix calculation. The salient feature of proposed method is to employ a time-domain training sequence (TS) for the estimation of CIR at every sampling time and low-complexity iterative method for solving the simultaneous equations which are required in the TDE method. This paper presents various simulation results to demonstrate the effectiveness of proposed TDE method as comparing with the conventional frequency domain equalization (FDE) method.
dc.identifier.citation2014 8th International Conference on Signal Processing and Communication Systems Icspcs 2014 Proceedings, 2014
dc.identifier.doi10.1109/ICSPCS.2014.7021109
dc.identifier.other2-s2.0-84988273402
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/5683
dc.source2014 8th International Conference on Signal Processing and Communication Systems Icspcs 2014 Proceedings
dc.subjectfrequency domain equalization
dc.subjectOFDM
dc.subjecttime domain equalization
dc.subjecttime-varying channel
dc.subjecttraining sequence (TS)
dc.titleIterative based time domain equalization method for OFDM signal under high mobile environments
dc.typeConference Paper

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