The Research of the PAPR Reduction in GFDM System

• Main Authors: Yu-Shen Chen, 陳禹伸
• Other Authors: 呂振森
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/htmwxs

碩士 === 國立臺北科技大學 === 電機工程系 === 106 === The Generalized Frequency Division Multiplexing (GFDM) system is a physical layer solution proposed by 5GNOW in Germany. It is a candidate of 5G communication systems to replace the Orthogonal Frequency Division Multiplexing (OFDM) in 4G communication system. Compared with the OFDM system, it has higher spectrum efficiency while lower the out-of-band interference and peak-to-average power ratio (PAPR) at the same time. This thesis mainly focuses on reducing the PAPR of the GFDM system without affecting symbol error rate (SER) by using Inverse Discrete Fourier transform (IDFT). In this thesis, the frame data after mapping in the GFDM system is modulated by three different kinds of IDFT matrices in order to find the best method. The computer simulation shows that our proposed method can effectively reduce the PAPR of the GFDM system.