Linear one tap equalizer for the spatial diversity based on GI-less OFDM system

In this paper, we introduce pre-FFT and post-FFT equalizers for an OFDM system without using a guard interval. Inter-symbol-interference is significantly reduced by adopting virtual sub-carriers. We extend the idea of spatial diversity to the proposed system to obtain high performance equalization in the presence of additive channel noise. The performance of the proposed equalizers is illustrated by computer simulations.