Some Results on Implementing Low-Complex ICI Cancellation for DVB-H

A combination of receiver windowing and inter-carrier interference (ICI) canceling is proposed for improving the Doppler frequency performance of a DVB-H receiver. The windowing reduces the ICI, and enables ICI cancellation of low complexity to give substantial improvements. Bounds for the possible improvements of ICI cancellation are presented and compared to results from both simulations and measurements on a DVB-H prototype. The obtained improvements from windowing agree well with that predicted by theory, whereas the gain from ICI cancellation is considerably smaller. This is primarily due to non-ideal channel estimation, which also is discussed. Although the measured performance for ICI cancellation is far from that theoretically possible, the gain in what Doppler frequency can be handled is more than 40%.