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Review of Wireless OFDM and its Challenges

Author(s):

Kamlendra Mishra , Gargi Institute of Science & Technology; Shailendra Patel , Gargi Institute science and Technology

Keywords:

OFDM, Wireless Communication, PAPR, AWGN, Selective Mapping, Clipping

Abstract

Current wireless OFDM system under AWGN channel are reviewed by the widely used choice of the researchers and wireless professionals. An OFDM is widely been used for the broadband high speed data and video transmission. There are many technical challenges while implementing the OFDM, the major challenge is problem of High PAPR which may leads to the non-linearity of the high power amplifier of the system and may cause distortion and less efficiency. Many researchers have designed methods to reduce the PAPR problem. The paper has broadly classified the PAPR reduction methods and then individually reviews the each category. Paper concludes that use of PAPR reduction methods may increase the efficiency of the OFDM system. Using hybrid combinations of the various methods may optimally improves the OFDM performance under large number of the sub carriers and different working environments.

Other Details

Paper ID: IJSRDV5I41013
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 2005-2009

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