• Deepak Kaushik
• Mayank Sharma

With the continued growth for high speed communication, the development of orthogonal frequency division multiplexing (OFDM) has evolved. In OFDM data are divided into sub careers which is related to multi career modulation method. In OFDM system, the transmission of high-speed data stream comprising a plurality of parallel using a lower data rate subcarrier. MIMO-OFDM is also used in 4G application, due to the high bandwidth frequency standing. Discrete wavelet transform (DWT) and Discrete cosine modify (DCT) is widely regarded as an operative way to replace the traditional FFT OFDM systems due to its improved time-frequency orientation, changing the bit incorrectness grade, minimizes the additional advance in bandwidth efficiency and thus improving the communication system in the time-frequency domain. It can be achieved because it can give quantify and frequency synchronization of the message roughly a good approximation of the adverse effect, so that when the signalize performance gets degraded, OFDM uses wavelet-based technique to counter it, which reduces the wastage of bandwidth. In the proposed work we have developed a DWT and DCT in OFDM system based on image transmission and compression. Performance of the system is based on AWGN channel, but also with the underlying value of fading channels on PSNR and BER analysis. I have also developed the entire process of the graphical user interface (GUI) and MATLAB application (APP).

DCT, DWT, OFDM, PSNR, Image Compression.

"MODELING SIMULATION AND EVALUATION OF DCT & DWT BASED IMAGE COMPRESSION AND ENHANCED DBA BASED NOISE REMOVAL FOR OFDM-4G SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.197-204, November-2018, Available :http://www.jetir.org/papers/JETIR1811B34.pdf

"MODELING SIMULATION AND EVALUATION OF DCT & DWT BASED IMAGE COMPRESSION AND ENHANCED DBA BASED NOISE REMOVAL FOR OFDM-4G SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp197-204, November-2018, Available at : http://www.jetir.org/papers/JETIR1811B34.pdf