IJMTES – BIO-MEDICAL IMAGE TRANSMISSION THROUGH OFDM CHANNEL BY MINIMIZING PAPR USING ADAPTIVE ACE TECHNIQUE

Journal Title : International Journal of Modern Trends in Engineering and Science

Paper Title : BIO-MEDICAL IMAGE TRANSMISSION THROUGH OFDM CHANNEL BY MINIMIZING PAPR USING ADAPTIVE ACE TECHNIQUE 

Author’s Name : M Hema Gayathri | G Vallathan  unnamed

Volume 03 Issue 10 2016

ISSN no:  2348-3121

Page no: 56-60

Abstract – Rapid advances in wireless and mobile communication and their convergence are leading to the emergence of new type of information infrastructure that has the potential supporting an array of advanced service for healthcare. The information need to be accessed from the remote database in highly secured and efficient manner. OFDM (Orthogonal frequency division multiplexing) is one of the most promising techniques for wireless communication system. OFDM provides higher spectral efficiency, flexibility and high performance in context of Bit error rate and Peak signal to noise ratio. One of the key problems in OFDM is high peak-to-Average Power Ratio (PAPR) which results in lower mean power level. In this proposed approach, the PAPR is minimized by using ACE (Active constellation extension) technique and modulation technique can be implemented by using QPSK (Quadrature phase shift keying) which provides high data rate and reduced computational complexity. However, the proposed method will provide a better transmission quality and higher security when compared to conventional method and it is expected to be suitable for real time medical image transmission. The performance metrics such as BER, MSE, PAPR and PSNR of the image has been analyzed by using MATLAB simulation tool.   

Keywords— OFDM, QPSK, ACE, BER, PSNR, MSE

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