Comparative Analysis of DWT Based OFDM System with DCT Based OFDM System for Image Transmission and Compression

Garima Govil; Priyanka Agrawal

Continued growth in demand for high speed communication has evolved, with the development of orthogonal frequency division multiplexing (OFDM) for various multicarrier modulation Techniques. In OFDM a large number of closely spaced orthogonal carriers are used to carry data. Discrete wavelet transform (DWT) and discrete cosine transform (DCT) is widely regarded as an effective way to replace the traditional FFT based OFDM system due to its better time frequency positioning, improved bit rate, interference & bandwidth efficiency. In the study presented, I am Comparing a DWT based OFDM System with DCT based OFDM system for image transmission and compression. Performance is based on AWGN Channel. I am using MATLAB 2013 R simulation software as comparing tool between both systems.

Select Volume / Issues:

• Volume 8,Issue 1, Jan. 2017

Year:

2017

Type of Publication:

Article

Keywords:

AWGN; BER; DCT; DWT; FFT; IFFT; OFDM; MSE; PSNR

Journal:

IJECCE

Volume:

8

Number:

1

Pages:

45-49

Month:

January

ISSN:

2249-071X