ICI Mitigation Schemes for Uncoded OFDM over Channels with Doppler Spreads and Frequency Offsets – Part II: Asymptotic Analysis

摘要

In the second part of this two-part paper, we derive approximations to the signal-to-interference plus noise power ratio (SINR) attainable by PCC, SCC, and windowing and compare their performances in terms of SINR. We also derive an asymptotically optimal window and discuss the optimality of the triangular window for ICI reduction. Finally, we derive approximations to bit-errorrate (BER) attainable by SCC and cyclic cancellation coding (CCC) when optimal combining is used at the receiver and compare these approximations with simulation results. We also discuss the relationships between these ICI mitigation schemes and other transmission schemes.