An Interference-Robust Transmission Method for OFDMA Uplink.

This paper deals with a simple way of reducing the multiple access interference (MAI) introduced by symbol timing misalignment in an OFDMA uplink system. To alleviate the MAI, we provide a new OFDMA transmitter equipping with a simple symbol repetition coupled with a cyclic time shift. It is found that this scheme can provide the MAI-robust reception without decreasing the bandwidth efficiency when the system is fully loaded. [ABSTRACT FROM AUTHOR]