| Summary: | 碩士 === 大同大學 === 通訊工程研究所 === 107 === With the evolution of wireless communication systems, the service content has become more diverse and comprehensive, but the power consumption of the device has also increased. Therefore, 5th generation wireless systems (5G) are technologies for improving the power amplifier efficiency of mobile terminals, extending battery life and reducing terminal costs, and incorporating Rotated Modulation (RM) on the uplink. In order to reduce the Peak-to-Average Power Ratio (PAPR) of the transmitted waveform. This technique exists only in Discrete Fourier Transform-Spread Orthogonal Frequency-Division Multiple (DFT-s-OFDM) and is only used for binary phase shift keying (BPSK). The rotation angle adopted by the 3GPP standard is π⁄2, which means π⁄2-BPSK modulation; however, with the different system parameters, the rotation angle of the best PAPR statistical performance does not fall on π/2. Therefore, this paper take advantages of the Monte Carlo methods to find the best angles for various modulations using RM, and further explores the reasons that except for BPSK, all other modulations does not adopt RM under the 5G standards.
|
|---|
