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Time variation of wireless fading channels introduces interference in block-based transmissions such as orthogonal frequency division multiplexing (OFDM) or single-carrier frequency domain equalization (SC-FDE). The interference, called inter-carrier interference (ICI) in OFDM or residual inter-symbol interference (ISI) in SC-FDE, impacts the bit error rate performance resulting in an error floor...
In this paper, we propose a novel receiver consists of the Inter Symbol Interference (ISI) canceller and the turbo equalizer for orthogonal frequency division multiplexing (OFDM) systems over frequency selective fading channels where the multipath delay exceeds the guard interval duration. The proposed turbo equalization algorithm performs soft Inter Carrier Interference (ICI) cancellation and frequency...
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