IEEE802.16e多天线系统的初始ranging检测算法

针对初始ranging检测未与多天线通信系统特点相结合的问题,在比较分析了几种传统多天线合并数据算法的基础上,提出了一种时域与频域相结合的多天线系统初始ranging检测算法.该算法利用检测到各天线上用户时偏值,将接收到的多天线数据按信道条件分别处理,这样既最大程度利用了多天线分集增益又避免了此增益使检测误差变大,起到了抑制多径衰落的作用.仿真实验结果表明,该算法在多径衰落信道条件下实现高速移动通信的同时较传统检测方法拥有更好的检测性能.

An initial ranging detection algorithm of multi-antenna system for IEEE 802.16e

To solve the problem of initial ranging detection w hi ch does not combine the features of multi-antennas communication system, based on the analysis of some traditional multi-antenna, an initial ranging detection algorithm on IEEE 802.16e combining time and frequency domains was proposed. Th e algorithm can detect the value of user＇s time bias, deal with the multi-anten na data separately in terms of channel condition, and in this way, it not only makes use of multi-antenna diversity gain to the largest extent, but also avoids larger detect error from this gain, playing a role of inhibiting multi-path fading. Simulation results showed that under the multi-path fading channel condition, this algorithm achieved high-speed mobile communications while keeping better detection performance than traditional detection methods.