alexa PAPR Reduction in Multi-User MIMOOFDM
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
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Research Article

PAPR Reduction in Multi-User MIMOOFDM

B.Ragadivya1, Dr.T.Sreenivasulu Reddy2
  1. M.Tech Student, Department of ECE, SVU College of Engineering, Andhra Pradesh, India
  2. Associate Professor, Department of ECE, SVU College of Engineering, Andhra Pradesh, India
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Orthogonal Frequency Division Multiplexing (OFDM) is a multi -carrier transmission method which is most broadly used in the field of communication. One of the main drawback of this scheme is Peak to Average Power Ratio (PAPR). There are various methods introduce for the reduction of PAPR in OFDM. However these technique have major disadvantage that they reason non -linear in-band deformation and out-of-band emission, this reduces the scheme throughput. Thus, Multi-Input and Multi output, which is the proposed technique discussed in our statement overcome this trouble. In this method, we replace some of the transmit data symbols by nulls, i.e. we introduce errors in the transmitted signal. At the receiver, an iterative decoder is used to correct the spreader and channel errors. Particularly, we suggest to together carry out MU pre-coding, OFDM cadence, and PAR lessening by solving a convex optimization trouble. We develop a matching fast iterative truncation algorithm (FITRA) and show arithmetical results to show marvelous PAR-reduction competence. The appreciably summary linearity supplies eventually permit the use of cut-rate RF components for the large-scale MU-MIMO-OFDM system.


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