Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 26th International Teletraffic Congress, ITC 26, 2014 |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Number of pages | 5 |
| ISBN (Electronic) | 978-0-9883045-0-5 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A4 Article in a conference publication |
| Event | 26th International Teletraffic Congress, ITC 26 - Karlskrona, Sweden Duration: 9 Sep 2014 → 11 Sep 2014 Conference number: 26th |
Conference
| Conference | 26th International Teletraffic Congress, ITC 26 |
|---|---|
| Abbreviated title | ITC 26 |
| Country | Sweden |
| City | Karlskrona |
| Period | 9/09/14 → 11/09/14 |
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Keywords
- ACE
- active constellation extension
- exponential companding
- OFDM
- peak-to-average power ratio
Cite this
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Exponential companding and active constellation extension comparisons for PAPR reduction. / Hekkala, Atso; Boumard, Sandrine; Lasanen, Mika.
Proceedings: 26th International Teletraffic Congress, ITC 26, 2014. IEEE Institute of Electrical and Electronic Engineers , 2014.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - Exponential companding and active constellation extension comparisons for PAPR reduction
AU - Hekkala, Atso
AU - Boumard, Sandrine
AU - Lasanen, Mika
PY - 2014
Y1 - 2014
N2 - One of the major drawbacks of the orthogonal frequency division multiplexing (OFDM) type of communication is the high peak-to-average power ratio (PAPR) of the transmitted signal. Unless carefully tackled, this may cause either reduced energy efficiency or increased nonlinear distortion when the signal is amplified for transmission. For improving energy efficiency, this paper considers PAPR reduction in OFDM based systems. In particular, we study and compare some PAPR reduction approaches including three exponential companding and active constellation extension (ACE) methods. We discuss the trade-offs of the methods. In addition, for the ACE method defined in the ETSI standard, we propose some modifications that give about 1 dB more PAPR reduction without any additional power increase of the transmitted signal. Moreover, if some spectral regrowth due to the PAPR reduction is acceptable, exponential companding approaches can also be used.
AB - One of the major drawbacks of the orthogonal frequency division multiplexing (OFDM) type of communication is the high peak-to-average power ratio (PAPR) of the transmitted signal. Unless carefully tackled, this may cause either reduced energy efficiency or increased nonlinear distortion when the signal is amplified for transmission. For improving energy efficiency, this paper considers PAPR reduction in OFDM based systems. In particular, we study and compare some PAPR reduction approaches including three exponential companding and active constellation extension (ACE) methods. We discuss the trade-offs of the methods. In addition, for the ACE method defined in the ETSI standard, we propose some modifications that give about 1 dB more PAPR reduction without any additional power increase of the transmitted signal. Moreover, if some spectral regrowth due to the PAPR reduction is acceptable, exponential companding approaches can also be used.
KW - ACE
KW - active constellation extension
KW - exponential companding
KW - OFDM
KW - peak-to-average power ratio
U2 - 10.1109/ITC.2014.6932969
DO - 10.1109/ITC.2014.6932969
M3 - Conference article in proceedings
BT - Proceedings
PB - IEEE Institute of Electrical and Electronic Engineers
ER -