【摘要】 多带UWB通信技术是目前超宽带通信技术中较为热的研究领域,本文引入了一种基于干扰抑制OFDM系统的UWB系统[4],在此基础至上和MIMO技术结合起来,引入一种实际可行的自适应调制算法,算法通过建立各子信道的能量增量表,来实现信息比特和功率的最优分配[1]。通过仿真试验可以发现,这种MIMO系统的结合可以改善系统的BER。更多还原

【Abstract】 Today multi-band ultra wide bandwidth (UWB) has caught more attention in the research of UWB communication. A UWB system which is based on interference suppressing OFDM (IS-OFDM)[4] is introduced in this paper. Much more, combined with MIMO tech, a new finite-granularity loading algorithm is introduced in this paper, which optimize bits and power allocation by building up an energy increments table[1]. Simulation results show the introducing of MIMO in UWB may improve performance of system by reducing BER.更多还原