PAPR Reduction Using Modified Selective Mapping Technique
نویسنده
چکیده
--------------------------------------------------------------------ABSTRACT-------------------------------------------------------------------------Multi-carrier modulation is an attractive technique for fourth generation wireless communication. Orthogonal Frequency Division Multiplexing (OFDM) is multi-carrier transmission scheme. Its high Peak to Average Power Ratio (PAPR) of the transmitted signal is a major drawback. In this paper, we propose to reduce PAPR by probabilistic method Modified selective mapping technique using the standard arrays of linear block codes. We choose lowest PAPR in each coset of a linear block codes as its coset leader from several transmitted signal. Simulation results show that PAPR results are better as compared to earlier work done by Yang Jie ,Chen Lei et al. The paper also compared PAPR QPSK/DQPSK-OFDM with and without SLM.
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Combination of Modified Clipping Technique and Selective Mapping for PAPR Reduction
Orthogonal frequency division multiplexing (OFDM) offers high data rate and supports high data rate applications. Although OFDM has advantages over traditional communication models but it frequently suffers from PAPR. PAPR is concerned area in OFDM from two decades and vast amount of research is carried out in literature. Selective Mapping remains as effective PAPR reduction approach and in pro...
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