• Ms.D.HARIKA
• Mr.R.NAGENDRA

To explore a novel effective Peak-to-Average Power Ratio (PAPR) reduction scheme for OFDM system based on conventional Selective Mapping Method (SLM) with regards to the Bit Error Rate (BER) performance. The Orthogonal frequency division multiplexing (OFDM) modulation technique [1] is a multicarrier wireless communication system used for transmitting large amount of data and promises to deliver high data rate with simple receiver structure. It is more spectral efficient and has been recommended to be used by many standards. One major drawback of OFDM systems is the high peak to average power ratio (PAPR) which leads to power inefficiency and signal distortion with practical power amplifiers used at the transmitter. Selective Mapping Method (SLM) is a distortion less technique that can reduce PAPR efficiently without increase in power requirement and incurring data rate loss. There are several techniques to reduce PAPR of OFDM system. In this paper we have done simulation of Selective Mapping Method (SLM) for PAPR reduction for 4 QAM baseband signal for 64, 128, 256, 512 and 1024 number of subcarriers. The simulation result shows that proposed SLM technique has better PAPR reduction performance.

OFDM; SLM, PAPR, BER, QAM

"SLM Technique for PAPR (Peak to Average Power Ratio) Reduction for OFDM Communication Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.880-884, June-2019, Available :http://www.jetir.org/papers/JETIR1906S62.pdf

"SLM Technique for PAPR (Peak to Average Power Ratio) Reduction for OFDM Communication Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp880-884, June-2019, Available at : http://www.jetir.org/papers/JETIR1906S62.pdf