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OFDM/OQAM Transmission over Time-Frequency Dispersive Channels: Interference Computation and Approximation

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Abstract

Orthogonal frequency division multiplexing based on offset QAM (OFDM/OQAM) scheme, which is a particular case of filter-bank multicarrier (FBMC) transmission technique, bypasses a major disadvantage of ordinary OFDM with cyclic prefix (CP) systems, namely the fact that FBMC with well time and frequency localized filters are more robust against the interference problem over frequency or time selective channel. In spite of that, the elimination of the CP increases the spectral efficiency of the system. In this paper, we evaluate the OFDM/OQAM system over radio-mobile channel by calculating the whole system equation. Terms of inter-symbol interference and inter-carrier interference are included in the equation of the received symbols. To simplify the calculation, we propose some approximation with some conditions related to the filter we use, and to the channel response. Finally we compare simulation results using different type of simple multipath channels.
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Dates and versions

hal-01722209 , version 1 (09-01-2019)

Identifiers

  • HAL Id : hal-01722209 , version 1

Cite

Ali Mokh, Cyrille Siclet. OFDM/OQAM Transmission over Time-Frequency Dispersive Channels: Interference Computation and Approximation. 2019. ⟨hal-01722209⟩
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