无线携能通信研究进展

Abstract

本文首先概要分析了无线携能通信技术的需求与前景，综述了国内外在无线能量传输(Wireless Power Transfer, WPT)和无线信息传输(Wireless Information Transmission, WIT)领域的研究现状。进而构思了无线携能通信系统的体系架构，并分析了该系统的信息调制方案、WPT方式以及动态功率分配(Dynamic Power Splitting, DPS)方案。最后，对采用超窄带调制技术作为无线携能通信系统的信息调制方案的合理性与性能进行了仿真与分析。 The needs and prospects of Simultaneous Wireless Information and Power Transfer (SWIPT) are analyzed at first. Development history and principal applications of Wireless Power Transfer (WPT) and Wireless Information Transmission (WIT) are summarized. On this basis, framework of SWIPT system is conceived. Moreover, the modulation schemes, the dynamic power splitting (DPS) methods and the main techniques used in WPT are discussed in details. Finally, the simulation performance of Ultra-Narrow Band (UNB) used as a novel high efficiency modulation scheme in SWIPT is illustrated and analyzed.