Comparative Study of PAPR Reduction Techniques in OFDM
| Author(s) | : | Khyati Keyur Desai |
| Institution | : | Lecturer in Electronics & communication Engineering, Electrical Department, Government Polytechnic, Valsad |
| Published In | : | Vol. 4, Issue 3 — March 2017 |
| Page No. | : | 222-231 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Orthogonal frequency division multiplexing (OFDM) also referred to as multicarrier communicationsystems, have become a key technology in current and for future communication systems. Due to OFDM’s immunity tomany channel imperfections, it is the ideal modulation scheme for many applications which transmit signals in hostileenvironments. A major drawback of OFDM is the high peak-to-average-power ratio (PAPR) problem, which can lead tolow power efficiency and nonlinear distortion at the transmitter power amplifier.In this paper one of disadvantage of OFDM-PAPR and its different reduction technique is discussed. The PAPR of thetransmitted signal power is large, necessitating power backoff, unless PAPR –reduction techniques are incorporated tocontrol the resulting nonlinear distortion at the power amplification stage. The various techniques for PAPR reductionare like selected mapping (SLM), partial transmit sequence (PTS), Tone reservation (TR), Tone injection (TI), clipping &filtering and active constellation Extension(ACE).
Khyati Keyur Desai, “Comparative Study of PAPR Reduction Techniques in OFDM”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 3, pp. 222-231, March 2017.
