Joint Error Correction and PAPR Reduction of OFDM Signals

Abstract

In this paper, we describe a coding technique for joint error correction and peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) signals. This technique uses a standard block code for error correction and achieves PAPR reduction at the expense of lower error correcting capability. The technique is first expressed as an optimisation problem and an efficient suboptimal algorithm for solving this problem is then proposed. The PAPR reduction and bit error rate (BER) performance of the proposed algorithm are investigated. The results show that the proposed algorithm significantly improves the system performance and also give PAPR reductions comparable with other PAPR reduction techniques