Performance evaluation of hybrid pts-slm techniques versus conventional pts

Abstract EN

Orthogonal Frequency Division Multiplexing (OFDM) is an attractive technique for wireless communication over frequency-selective fading channels.

Suffer from high Peak-to-Average Power Ratio (PAPR) limiting OFDM usage and reduces the efficiency of High Power Amplifier (HPA) or worse degrade BER.

Many PAPR reduction techniques have been proposed in the literature, among them Partial Transmit Sequence (PTS) and Selected Mapping (SLM) are highly successful PAPR reduction techniques.

However, the highly computational complexities of these techniques limit their PAPR reduction capability.

Recently different hybrid schemes combine PTS and SLM aim to reduce the computational complexity or obtain a better PAPR reduction performance compared with conventional PTS.

In this paper, a fairly comparison between PTS and the other hybrid techniques is done, considering technique that can reduce number of required additions and multiplications or at least one of them less than PTS, as the best technique among others.

Results show that only SH which can achieve this condition while the other hybrid techniques can't achieve that.