Research on signal processing techniques considering peak transmit power in MIMO communication systems

在MIMO系统中，降低发射信号的峰均功率比（PAPR）对于提高发射机功率放大器处的功率效率是重要的。本研究的目的是发展自适应信号处理技术的功率有效的MIMO多载波/多码通信系统。研究了MIMO多载波和矢量编码系统中基于相位控制的峰均比降低技术和自适应峰幅相消技术。结合自适应线性化技术的PAPR降低方法的有效性得到了证实。

In MIMO systems, it is important to reduce peak-to-average power ratio (PAPR) of the transmit signal for improving power efficiency at transmitter power amplifier. The objective of this research is to develop adaptive signal processing techniques for power efficient MIMO multi-carrier/multi-code communication systems. Phase control based PAPR reduction techniques and adaptive peak amplitude cancellation techniques for MIMO multi-carrier and vector coding systems are developed. The effectiveness of the developed PAPR reduction methods combined with an adaptive linearization techniquewas confirmed.