Performance Tradeoff of PTS & SLM Technique using Various Modulator in 802.11g
Gaurav Chandra1, D. K. Saxena2, Gaurav Bhandari3
1Gaurav Chandra, Electronic and Communication Engineering., Dehradun Institute of Technology, Dehradun, India.
2Dinesh Kumar Saxena, Electronic and Communication Engineering., Dehradun Institute of Technology, Dehradun, India.
3Gaurav Bhandari, Electronic and Communication Engineering Dehradun Institute of Technology, Dehradun, India.
Manuscript received on January 22, 2013. | Revised Manuscript received on February 13, 2013. | Manuscript published on February 28, 2013. | PP: 449-455 | Volume-2 Issue-3, February 2013. | Retrieval Number: C1177022313/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Orthogonal Frequency Division Multiplexing technique (OFDM) is a most widely used technology in today’s wireless communication system. This technology suffer with a shortcoming known as Peak to Average Power Ratio (PAPR), due to this, the High Power Amplifiers (HPA) are worked in nonlinear region and cause inter-modulation distortion and unwanted out of band radiation. To combat the PAPR various PAPR reduction technique are developed. In this paper the most efficient signal distortion-less technique, Partial Transmit Sequence (PTS) and Selected Mapping (SLM) are used under different modulator namely Quadrature Phase Shift Key (QPSK) and Quadrature Amplitude modulator and analyzing and comparing the techniques simultaneously and varying the different parameters like Modulation factor, Sub-band, oversampling factor has been done.
Keywords: CCDF, ODFM, PAPR, PTS, QPSK, QAM and SLM.