UWB系统中MMSE迭代多用户检测技术的研究

Analysis on MMSE Iterative Multi-user Detection for UWB System

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.

DS - UWB, an integration of Direct Sequences Spread Spectnnn 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 itemtive 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 Tttrbo decoding and multi - user detection, has become a hotspet 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.