PAPR Reduction in OFDM System using DWT with Non linear High Power Amplifier
Saumya Tripathi1, Abhinav Rastogi2, Kapil Sachdeva3, Mohit Sharma4, Pankaj Sharma5
1Dr. Pankaj Sharma, Department of EC, MIT, Moradabad (U.P), India.
2Saumya Tripathi, Department of EC, MIT, Moradabad (U.P), India.
3Abhinav Rastogi, Department of EC, MIT, Moradabad (U.P), India.
4Kapil Sachdeva, Department of EC, MIT, Moradabad (U.P), India.
5 Mohit Sharma, Department of EC, MIT, Moradabad (U.P), India.
Manuscript received on 15 April 2013 | Revised Manuscript received on 22 April 2013 | Manuscript Published on 30 April 2013 | PP: 184-188 | Volume-2 Issue-5, April 2013 | Retrieval Number: E0719042413/13©BEIESP
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Abstract: High Peak to Average Power Ratio (PAPR) of the transmitted signal is a major problem in Orthogonal Frequency Division Multiplexing (OFDM) which induces the degradation of bit error rate (BER) leading to a significant loss in the transmission power efficiency. Simulation results of the proposed technique shows a prominent reduction of 1.63 dB in PAPR. In this paper, we have investigated the performance of DWT-OFDM against conventional FFT-OFDM in terms of PAPR and BER (Bit Error Rate) in the system.
Keywords: DWT, FFT, HPA, OFDM, PAPR.
Scope of the Article: Low-power design