Abstract
The orthogonal frequency-division multiplexing (OFDM)
became the most important technology of the wireless
broadband communications system because it achieves high
data transmission and is robust to the frequency
selective fading channel. However, the major disadvantage
of this technology is a high peak-to-average power ratio
(PAPR) because it causes signal distortion and high
energy consumption. Thus, a new PAPR reduction technique
is proposed in this paper. The proposed selective mapping
technique (SLM) uses a phase rotation as well as a
sliding amplitude weighting factor in frequency domain to
generate statistically independent OFDM symbols group.
Some subcarrier with high frequency produces many peak
points in time domain so that it causes high PAPR. Thus,
the basic principle of the proposed scheme is that some
subcarrier with low frequency is given to a high
amplitude weighting factor and some subcarrier with high
frequency is given to a low amplitude weighting factor.
In addition, the performance of the proposed SLM is
evaluated with computer simulations
| Original language | English |
|---|---|
| Title of host publication | IEEE 77th Vehicular Technology Conference (VTC Spring) |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| ISBN (Print) | 978-1-4673-6337-2 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A4 Article in a conference publication |
| Event | IEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Dresden, Germany Duration: 2 Jun 2013 → 5 Jun 2013 Conference number: 77 |
Publication series
| Series | IEEE Vehicular Technology Conference Proceedings |
|---|---|
| Volume | 77 |
| ISSN | 1550-2252 |
Conference
| Conference | IEEE 77th Vehicular Technology Conference, VTC Spring 2013 |
|---|---|
| Abbreviated title | VTC Spring 2013 |
| Country/Territory | Germany |
| City | Dresden |
| Period | 2/06/13 → 5/06/13 |
Keywords
- Etc
- FFT
- OFDM
- PAPR
- Selective Mapping Technique
- wireless communication