Recursive Estimation of the Partial Clipping Noise in IDMA System with Limited Peak

Abstract

Interleave-division multiple access (IDMA) inherits the peak-to-average power ratio (PAPR) problem especially with large number of multiple layers. Clipping transmission is a really simple and efficient method, but clipping noise is a tradeoff [1], [2] to its performance. Due to different weighting factors [2], an ordering technique is considered in this letter to recursively cancel the partial clipping noise at each detection. Simulation results show that the performance is close to that of unclipped IDMA chip in the high SNR region (8-9dB).