| Jurnal Angkasa Tahun 2011 Oleh Yenni Astuti |
PAPR OF OFDM USING 4-QAM AND 16-QAM |
| ABSTRAK |
| Abstract – Orthogonal Frequency Division Multiplexing (OFDM) is one of modulation technique that has an ability to deal with multipath fading. However in the time domain, this modulation technique produces a large Peak-to-Average Power Ratio. This large PAPR value has an effect to the hardware performance, especially in the amplifier’s efficiency. This paper simulates the PAPR value on 4-QAM and 16-QAM. The PAPR phenomenon is studied using Matlab Software that compared with the analytical method. As the conclusion, for the same sub channel number, 16-QAM gives the higher PAPR value than 4-QAM. In addition, the more sub channel is used, the higher PAPR value will be. Keywords: OFDM, PAPR, 4-QAM, 16-QAM. |
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