摘要
在传统的PTS方法中,计算复杂度高,需要传送边带信息,而直接将边带信息插入到优化后的OFDM符号中会再次提高PAPR。针对传统PTS方法的这些缺点,提出新的PTS方法。在新的PTS方法中,边带信息根据采样点相位进行取值,能够降低计算复杂度,每一帧的最后一个子载波用来传输前一帧的边带信息,从而达到不增加OFDM信号PAPR的目的。仿真分析表明,相对于传统PTS方法,既能够降低计算复杂度,又能够在不增加PAPR的前提下传输边带信息。
In conventional PTS method, computational complexity is high and side information needs to be transmitted which may raise PAPR again when inserted directly into optimized OFDM signals. Concerning these drawbacks, a new PTS method was proposed. In new PTS method, side information was valued according to the phases of sampling points, which resulted in reducing computational complexity, the last sub-carrier in every frame was used to transmit the side information of previous frame, which resulted in avoiding raising PAPR of OFDM signals again. Simulation analysis shows that, compared with conventional PTS, the proposed PTS method could reduce computational complexity and transmit side information without PAPR rising again.
出处
《信息通信技术》
2010年第4期63-66,共4页
Information and communications Technologies
