【摘要】 DS-UWB是脉冲无线电和扩频技术的结合,在高速数据通信和低速传感器网络中都有广阔的前景和应用空间.迭代多用户检测(MUD)接收机,是Turbo迭代译码思想的推广.本文将迭代MUD接收机用于DS-UWB系统,通过仿真试验研究表明,经过多次迭代后,系统性能将得到很大提高,可以接近单用户的性能.更多还原

【Abstract】 DS-UWB,an integration of Direct Sequences Spread Spectrum and Impulse Radio techniques,is a promising technology in high speed wireless communication,low speed sensors network and some other great usages in the near future.The paper introduces an iterative multi-user receiver for DS-UWB system,which derives from Turbo decode algorithm.The iterative multi-user detection decoding technology,combined with the research on Turbo decoding and multi-user detection,has become a hotspot in communication research field recently.The research shows that iterations of the system are used to attain large performance improvements that are close to single user performance.更多还原