An IS-OFDM system for point-to-point wireless communications that suppresses narrow-band interference comprises an IS-OFDM transmitter and an IS-OFDM receiver, wherein a transmitted signal comprises a plurality of subcarriers, and further wherein each subcarrier contains more than one and potentially...http://www.google.de/patents/US7158474?utm_source=gb-gplus-sharePatent US7158474 - Interference suppressing OFDM system for wireless communications
