International Journal of Recent Trends in Engineering & Research

online ISSN

Review Paper on Reduction Techniques of PAPR in VLC OFDM System

Publication Date : 15/03/2016


Author(s) :

Amol J. Bhakte , Amol J. Bhakte , Kiran D. Bondre.


Volume/Issue :
Volume 2
,
Issue 3
(03 - 2016)



Abstract :

Communication is one of the important aspects of everyday life. With the advancement in age and its growing demands, there has been rapid growth in the communications field. Visible Light Communication OFDM system is a data communications medium using visible light. Visible light frequency spectrum bandwidth ranges from 430 THz to 790 THz. Visible light communication technology enabling data transmission by using light emitting diode (LED). This device has attracted much attention in recent communication system. Orthogonal Frequency Division Multiplexing (OFDM) has been widely used in wireless communications technology due to its high data rate, frequency selective fading and immunity to delay spread and other advantages, but besides these benefits the main disadvantages is the high peak to average power ratio (PAPR). This peak to average power ratio is an important feature to analyse the system performances. PAPR will increase the system complexity and reduce the communication system performance. High PAPR limit the application of OFDM system. To reduce the OFDM signal peak to average power ratio (PAPR) in VLC system, the Clipping, Selected Mapping (SLM), Partial Transmit Sequence (PTS) and Discrete Fourier transform spread (DFT-S) techniques are used. For statistical analysis of PAPR the Complementary Cumulative Distribution Function (CCDF) is used. Performance analysis in terms of CCDF and BER plots will be shown. In this paper, PAPR problem in VLC is defined and this paper present different PAPR reduction techniques analysis.


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