面向毫米波大规模MIMO的时间反演干扰消除技术

提出了面向毫米波大规模多输入多输出(multiple input multiple output, MIMO)的新型时间反演技术,称为干扰消除时间反演。该方法适用于频率选择性室内信道,通过预滤波器设计来实现。该方法在传统时间反演技术的基础上进行优化,使毫米波大规模MIMO系统的用户间干扰达到最小。推导了使用该方案时系统的信噪比和用户可达速率表达式,并对所提方法的计算复杂度进行了对比分析。仿真验证了干扰消除时间反演法使每个用户的平均误比特率减小,提高了系统可达速率。

Interference elimination time reversal technique based on millimeter wave massive MIMO

A time reversal technique based on millimeter wave massive multiple input multiple output (MIMO is proposed, which is called interference elimination time reversal. This method is suitable for frequency selective indoor channels and is implemented by designing a prefilter. This method is optimized based on traditional time reversal technology, so that the inter user interference between millimeter wave massive MIMO systems is minimized. The signal-to-noise ratio and the user achievable sum rate expression of the scheme are deduced, and the computational complexity of the two methods is compared and analyzed. The numerical simulation results show that the proposed method can reduce the average bit error rate of each user and improve the achievable sum rate of the system.