IJMTES – PAPR REDUCTION IN MIMO SYSTEM WITHOUT SIDEBAND INFORMATION

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : M.Pruthiv, S.Barathkumar

Volume 01 Issue o3 March 2014   

ISSN no:  2348-3121 

Page No:54-57

Abstract—In this project  proposed  a  phase  offset  selected  mapping  (SLM)   Scheme  is  used  to reduce   PAPR   which  means  Peak to Average  Power   Ratio for Alamouti  coded  Multi-Input &Multi-Output  (MIMO)  orthogonal  Frequency  Division  Multiplexing  System. The  main  key idea  of  this  project  is  that  different  phase  rotation  sequence  are  multiplied  by  corresponding  phase  offset  at  a transmitter. Minimum Euclidean Distance (MED) decoder at the receiver will  recover that  phase  rotation  sequence. SLM  scheme  is  not  need  to  reserve  bits  for  side band information  due to this data rate is increased. Theoretical  analysis  and simulation  results  show  that  the  proposed  SLM  scheme  could  offer  good  performances  of  both  the  bit  error  rate and PAPR reduction. Multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) has become a promising candidate for next generation broadband wireless communications a single-input single-output (SISO)-OFDM, one main disadvantage  of  the MIMO-OFDM is the high peak to- average power ratio (PAPR), which could be reduced by using an amplitude clipping.

Keywords MIMO; OFDM-PAPR; Side Information-SLM

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