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Design of Simulink Model for Constant Envelop OFDM & Analysis of Bit Error Rate

Author(s):

SHWETA SAINANI , VINDHYA INSTITUTE OF SCIENCE AND TECHNOLOGY; HITESH MANGHNANI, DEFENCE RESEARCH AND DEVELOPMENT LABORATORY

Keywords:

OFDM, AWGN, BER

Abstract

This paper describes a transformation technique aimed at solving the peak-to-average power ratio (PAPR) problem associated with OFDM (Orthogonal Frequency Division Multiplexing). The Constant Envelop-OFDM solves the problem of high peak-to-average power ratio (PAPR) in OFDM, reducing PAPR to 0 dB. The constant envelope signal can be efficiently amplified with nonlinear power amplifiers thus achieving greater power efficiency. It is shown that CE-OFDM’s performance is better than conventional OFDM when taking into account the effects of the power amplifier. The performance of CE-OFDM is analyzed in additive white Gaussian noise (AWGN) channel. CE-OFDM is shown to achieve good performance with the use of cyclic prefix transmission. By way of computer simulation, CE-OFDM is shown to compare favorably to conventional OFDM. OFDM and CE-OFDM is analyzed on grounds of BER with additive white Gaussian noise (AWGN). The BER is calculated and the performance of OFDM and CE OFDM is compared.

Other Details

Paper ID: IJSRDV3I100016
Published in: Volume : 3, Issue : 10
Publication Date: 01/01/2016
Page(s): 41-45

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