Low-Dimensionality of Noise-Free RSS and Its Application in Distributed Massive MIMO
Low-Dimensionality of Noise-Free RSS and Its Application in Distributed Massive MIMO
We examine the dimensionality of noise-free uplink received signal strength (RSS) in a distributed massive multiple-input multiple-output system. Upon applying principal component analysis to the noise-free uplink RSS data, we observe that it spans over a low-dimensional principal subspace. We make use of this unique property to propose a reconstruction-based …