Experimental validation of ICI-Aware OFDM receivers under time-varying conditions

Orthogonal Frequency Division Multiplexing (OFDM) communications under highly time-selective channels are severely affected by Inter-Carrier Interference (ICI). Estimation and cancellation of ICI in OFDM systems has been thoroughly studied, but few empirical measurements of the performance of such techniques have been done. We present a wireless communication testbed and a methodology to evaluate the performance of OFDM transmissions in real-world scenarios affected by large Doppler spreads. We show that it is possible to induce such large Doppler spreads while conducting experiments with a moving vehicle at a low speed.