Abstract:

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.