| Presentation | 2014-01-24 A Study on Peak Amplitude Suppression of Multi-Carrier Signals under Restriction of Out-of-Band Radiation Power, Part 2 Takaya HINO, Osamu MUTA, Hiroshi FURUKAWA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of subjects in multi-carrier modulation systems such as orthogonal frequency division multiplexing (OFDM) is to reduce peak-to-average power ratio (PAPR) of the transmit signal. As a solution to this, we have proposed a PAPR reduction scheme based on adaptive peak amplitude cancellation for multi-carrier systems, where peak amplitude of the transmit signal is iteratively suppressed by adding a specific peak cancellation (PC) signal. The PC signal has a sharp peak amplitude at the midpoint of pulse waveform in time domain. In the proposed scheme, out-of-band radiation power and in-band distortion power are estimated by cumulating the added PC signal power, so that both adjacent channel leakage power ratio (ACLR) and error vector magnitude (EVM) are automatically adjusted so as to meet a given requirement. This paper evaluate performance of QAM-OFDM signal using the proposed PAPR reduction. In addition, we proposed a method to determine a proper threshold level for detecting peak value of transmit signal, automatically. Computer simulation results prove that the proposed PAPR suppression scheme effectively reduce PAPR of the QAM-OFDM signal, while both ACLR and EVM requirements are simultaneously fulfilled. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multi-carrier signal / Peak-to-average power ratio (PAPR) / PAPR reduction / ACLR / EVM |
| Paper # | SIP2013-120,RCS2013-290 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2014/1/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Peak Amplitude Suppression of Multi-Carrier Signals under Restriction of Out-of-Band Radiation Power, Part 2 |
| Sub Title (in English) | |
| Keyword(1) | Multi-carrier signal |
| Keyword(2) | Peak-to-average power ratio (PAPR) |
| Keyword(3) | PAPR reduction |
| Keyword(4) | ACLR |
| Keyword(5) | EVM |
| 1st Author's Name | Takaya HINO |
| 1st Author's Affiliation | Graduate School of Information Science and Electrical Engineering, Kyushu University() |
| 2nd Author's Name | Osamu MUTA |
| 2nd Author's Affiliation | Center for Japan-Egypt Cooperation in Science and Technology, Kyushu University |
| 3rd Author's Name | Hiroshi FURUKAWA |
| 3rd Author's Affiliation | Graduate School of Information Science and Electrical Engineering, Kyushu University |
| Date | 2014-01-24 |
| Paper # | SIP2013-120,RCS2013-290 |
| Volume (vol) | vol.113 |
| Number (no) | 386 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |