| Title | A companding technique for reducing peak-to-average power ratio of OFDM signals |
| Authors | Han Gujing Liu Xiaoli Yin Xiaogong Qin Liang |
| Issue Date | 2012 |
| Publisher | Journal of Huazhong University of Science and Technology(Nature Science Edition) |
| Keywords | communication technology orthogonal frequency division multiplexing peak-to-average power ratio statistical distribution companding technique low complexity |
| Citation | Journal of Huazhong University of Science and Technology(Nature Science Edition), 2008. |
| Abstract | A companding technique was studied on for reducing peak-to-average power ratio(PAPR) of orthogonal frequency division multiplexing (OFDM) signals,and a novel convergent companding function was proposed.The companding function makes the instantaneous power of OFDM signals form uniform distribution,realizing large signal compressing and small signal expanding without changing the average power of original signals.Meanwhile,it can also attain the PAPR less than 3dB through quantificationally tuning up parameters.The computer simulation shows that,comparing with the existent companding technique,this new companding technique has not only lower computational complexity but also less spectrum distortion and lower bit error ratio under the same system condition.It′s really a practical and effective method of reducing PAPR of OFDM signals. |
| Appears in Collections: | 电子系 |
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