IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

PAPR Reduction Method for OFDM Based Massive MIMO Systems


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International Journal for Innovative Research in Science & Technology
Volume 3 Issue - 11
Year of Publication : 2017
Authors : Siny Daniel ; Naveena Mariam Jose; Hari S

BibTeX:

@article{IJIRSTV3I11007,
     title={PAPR Reduction Method for OFDM Based Massive MIMO Systems},
     author={Siny Daniel, Naveena Mariam Jose and Hari S},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={11},
     pages={8--12},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I11007.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

The problem of peak-to-average power ratio (PAPR) reduction in orthogonal frequency-division multiplexing (OFDM) based massive multiple-input multiple-output (MIMO) downlink systems is considered. OFDM consist of large number of independent subcarriers, as a result of which the amplitude of such a signal can have high peak values. The peak to average power ratio of a transmitted signal is one of main challenges in OFDM or MIMO-OFDM. Understanding the effects of PAPR on OFDM and MIMO-OFDM systems is critical when determining what techniques to use improve system performance. Selective-Mapping (SLM) scheme which does not require the transmission of side information and can reduce the PAPR in OFDM system is proposed. SLM is a distortion less technique that can reduce PAPR efficiently without increase in power requirement and incurring data rate loss. Simulation results show that the system can achieve significant reduction in PAPR and satisfactory bit error rate performance over AWGN channels.


Keywords:

PAPR, OFDM, SLM, AWGN Channels


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