Alexander Fengler, Saeid Haghighatshoar, Peter Jung, Giuseppe Caire
TL;DR论文研究了无源随机接入(U-RA)问题,通过利用大规模 MIMO 基站和协方差恢复算法实现高频谱效率,但也存在复杂度问题。
Abstract
We consider the problem of unsourced random access (U-RA), a grant-free
uncoordinated form of random access, in a wireless channel with a massive mimo
base station equipped with a large number $M$ of antennas and