Optimal PRCC Coded OFDM Transceiver Design for Fading Channels

In this paper, an adaptive receiver for efficient inter carrier interference (ICI) cancellation in OFDM systems using two-path conjugate transmission is proposed. This receiver design is based on the phase rotated conjugate cancellation (PRCC) concept, where one common phase rotation is applied to the two transmit paths. An adaptive normalized block least mean-squared algorithm is used for the adaptive phase rotation, such that the requirement for feedback of CFO information can be eliminated. The proposed adaptive receiver gives better bit error rate performance than the conventional OFDM systems.