Adaptive Active Constellation Extension Algorithm for Peak-to-Average Ratio Reduction in OFDM

Date Added: Oct 2009
Format: PDF

In this paper, the authors have proposed a new CB-ACE algorithm for PAR reduction using adaptive clipping control. They observed that the PAR reduction capacity of the existing CBACE is dependent on the initial target clipping ratio. The lower the initial target clipping ratio is from the optimal clipping value, the smaller the PAR reduction gain. However, their proposed algorithm provided the minimum PAR even when the initial target clipping ratio was set below the unknown optimum clipping point.