摘要
针对MIMO-OFDM系统高峰均功率比的问题,充分利用MIMO-OFDM系统多个天线所提供的自由度和未加利用的子载波,提出一种利用子块逐次旋转与子载波预留算法相结合来无失真地降低峰均功率比的新方案.仿真结果表明,该方案能有效降低峰均功率比,与SS-CARI算法相比,该方案具有相近的性能而边带信息量更少.
In order to reduce peak-to-average power ratio （PAPR） and make the best use of multiple antennas and the unused carriers of MIMO-OFDM system, this paper presents a new method which combines the algorithms of subblock successive rotation （SSR） and rones reservation （TR） and can reduce PAPR. Simulation results show the effectiveness of this method. Compared with successive suboptimal CARI （SS-CARI）, this method has a similar performance; besides, it needs less side information （SI）.
出处
《应用科技》
CAS
2009年第12期20-23,共4页
Applied Science and Technology
