FPGA Realization of Peak-to-Average Power Ratio Reduction Techniques for OFDM Wireless Systems

The high peak-to-average power ratio (PAPR) of multi-carrier wireless waveforms (e.g. OFDM) presents a challenge to the cost effective and efficient introduction of these wideband signaling techniques in the context of WiMaX, 3G long term evolution (LTE) and other broadband communication systems. This paper provides an overview of the FPGA implementation of two methods for PAP reduction - tone reservation and adaptive constellation extension (ACE). The performance of the two approaches are presented along with FPGA resource estimates for their realization.