A Novel Technique in Channel Estimation using Wavelet Transform in OFDM Systems |
Author(s): |
| Ushma Pancholi , Shankersinh Vaghela Bapu Institute of Technology; Ravi Patel, Shankersinh Vaghela Bapu Institute of Technology |
Keywords: |
| OFDM, DWT, FFT, Channel Estimation |
Abstract |
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now a day there is increasing a demand for high touching performance, higher bit rate in wireless communication system. In wireless communication, orthogonal frequency division multiplexing (OFDM) is multi-carrier modulation scheme. So, OFDM has higher transmission rate ability with higher bandwidth efficiency and robust to multipath fading. Moreover, in wavelet based OFDM is more bandwidth efficient as compared to DFT based OFDM system. In this system analyzed the various wavelet families (Haar, Symlet, Daubechies, Biorthogonal, Coiflet). And it compared with DFT based OFDM system. Also, analyzed the LS channel estimation using different wavelet and it compared with DFT based OFDM system. The result constitute that DWT based OFDM system is better than DFT-OFDM through the bit error rate (BER). |
Other Details |
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Paper ID: IJSRDV3I30247 Published in: Volume : 3, Issue : 3 Publication Date: 01/06/2015 Page(s): 239-242 |
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