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Nonlinear Distortion Removal in HPA Using Modified APC in Faded OFDM OSFBC Systems

Author(s):

Apoorva Shrivastava , Gyan Ganga College of Technology, Jabalpur; Prof. Amit Chouksey, Gyan Ganga College of Technology, Jabalpur

Keywords:

SFBC: Space Frequency Block Coding, SSFBC: Semi Space Frequency Block Coding, HPA: High Power Amplifier, OSTBC: Orthogonal Space Time Block Coding

Abstract

High power amplifiers (HPAs) are among essential parts of any wireless communication systems and HPA’s nonlinearity results in constellation warping, spectrum re-growth and nonlinear inter-symbol interference (ISI), Multiple-input multiple-output (MIMO) systems, in general, when operating with nonlinear HPAs further incur nonlinear inter-channel interference (ICI). MIMO-SFBC is an appropriate solution which provides the better compensation of spectrum re-growth, constellation warping, ISI and ICI. But available MIMO-STBC are not working at full rate hence proposed work will use Space Frequency Block division, SFBC provide better orthogonality instead of STBC. An OSFBC to two transmits receiving wires, with full rate of information communication however additionally its summed up variant accomplishes limit if there should arise an occurrence of two transmit & two get reception apparatus as it were. Presented OSFBC encoder is inspected as for blunder rate rendering & unearthly proficiency with ideal MIMO communication structure & discovered less BER as past outlines. In second a portion of this work blend of Space-Time Codes with routine channel coding systems is considered. In this thesis, performance of STBC-OFDM is analyzed under multipath Rayleigh fading channels with different PSK modulation, in different antenna selection techniques, also at the same time STBC-OFDM is analyzed under multipath Rayleigh fading channels with different PSK modulation, in different antenna selection techniques and at last the advantages of SFBC over STBC has been discussed.

Other Details

Paper ID: IJSRDV6I80002
Published in: Volume : 6, Issue : 8
Publication Date: 01/11/2018
Page(s): 4-9

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