Title:
A communication machine and a correspondence procedure
Document Type and Number:
Japanese Patent JP5920238
Kind Code:
B2
Abstract:
A modulator generates modulation signals from input signals. A combiner arranges subcarrier modulation signals based on the modulation signals in order thereby to generate a compound matrix. The shifter shifts elements of each row of the compound matrix to generate shift matrix. An IFFT calculator subjects the shift matrix to inverse fast Fourier transformation to generate inverse transformation matrix. A maximum detector detects a column with a highest peak-to-average power ratio among columns of the inverse transformation matrix. A minimum detector detects an inverse transformation matrix including a column with a lowest peak-to-average power ratio among columns of inverse transformation matrices detected by the maximum detector. A transmitter generates a transmission signal based on baseband signals generated from each column of the inverse transformation matrix detected by the minimum detector, and transmits the transmission signal.
Inventors:
Nishikawa Nobuyoshi
Application Number:
JP2013021487A
Publication Date:
May 18, 2016
Filing Date:
February 06, 2013
Export Citation:
Assignee:
Icom Co., Ltd.
International Classes:
H04J11/00
Domestic Patent References:
| JP2009065385A |
Foreign References:
| US20050265468 | ||||
| WO2008081535A1 |
Other References:
Kyu-Hong Kim ; Hyun-Bae Jeon ; Jong-Seon No ; Dong-Joon Shin,New SLM scheme for PAPR reduction in OFDM signals,Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on ,2008年12月10日,pp.1-4
Bani, K. ; Bansode, R. ; Mishra, B.K.,Novel technique for PAPR reduction in OFDM system using π/4-shifted-DQPSK modulation & turbo code,Devices, Circuits and Systems (ICDCS), 2012 International Conference on ,2012年 3月16日,pp.627-633
Bani, K. ; Bansode, R. ; Mishra, B.K.,Novel technique for PAPR reduction in OFDM system using π/4-shifted-DQPSK modulation & turbo code,Devices, Circuits and Systems (ICDCS), 2012 International Conference on ,2012年 3月16日,pp.627-633
Attorney, Agent or Firm:
Kimura Mitsuru
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