A comprehensive analysis of dynamic PAPR reduction schemes in MIMO-OFDM systems

Abstract

In  this  paper,  an  attempt  develops  three  different  methods,  namely,  Hybrid Maximal-Minimum (Max-Min) model with Decomposed Selective Mapping (D-SLM)   in   a   UFMC,   Modified   Enhancement   Asymmetric   Arithmetic Coding  Scheme  (M-EAAC)  and  Dynamic  Threshold-based  Logarithmic Companding  (DTLC)  is  carried  out  in  Multiple-Input,  Multiple-Output Orthogonal  Frequency-Division  Multiplexing  (MIMO-OFDM)  technology to  enhance  the  PAPR  reduction.  These  methods  allow  increased  data  rate request  through  threshold  limit  adjustment  in  a  desired  out-of-band  (OOB) range, allows data transmission for the selected for the candidate sequences for maximizing the channel utility, data capacity and computational demands and  varying  threshold  limit  to  analyse  the  nonlinear  companding  effect, respectively   on   D-UFMC-SLM,   M-EAAC   SCS-TI   and   DTLC.   The extensive  analysis  shows  that  the  proposed  M-EAAC  SCS-TI  achieves  a reduced CCDF PAPR, increased average spectral efficiency and redued Bit Error  Rate  (BER)  than  the  other  proposed  DTLC  and  D-UFMC-SLM methods.