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Design and implementation of Discrete Hartley Transform ( DHT ) and Fast Fourier Transform ( FFT ) based OFDM System in AWGN Channel
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dv, Romanov |
| Copyright Year | 2014 |
| Abstract | The structure and algorithm of IDFT DFT, the conventional method used in modulation/demodulation process in OFDM system, one of such type of technique is Discrete Hartley Transform. The requirement of only real arithmetic computations for the proposed technique makes it more advantageous in terms of simplicity and computational speed than conventional one. This technique is very closely related to Discrete Fourier Transform. The performance of DHT based OFDM system and DWT-based OFDM system structure is carried out using raw data as well as with some images as the sources and after processing at the transmitter end, the signals are then transmitted through channel. Additive White Gaussian Noise (AWGN) has been considered for channel modeling. For accuracy of this simulation, the measurement of parameters has been repeated multiple times. in this project, all three structures will be implemented, Simulation has been performed on MATLAB 7.0 to acquire their BER performances and SNR shows the improvement of performance. The system performance was analyzed for MPSK mapping schemes with various values of M, where M is order of modulation technique used. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ijsetr.com/uploads/314265IJSETR3003-186.pdf |
| Alternate Webpage(s) | http://www.ijsetr.com/uploads/543612IJSETR3003-186.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
