A SOS subspace method for blind channel identification andequalization in bandwidth efficient OFDM systems based on receiveantenna diversity

摘要

A blind second order statistical (SOS) subspace based channelidentification and equalization technique is introduced and investigatedfor bandwidth efficient orthogonal frequency division multiplexing(OFDM) systems. A suitable zero-forcing linear equalizer (ZF-LE) is alsoproposed. Simulations show that identification and equalization ispossible with only a small number of short length OFDM symbols