A Novel Pilot Assignment Scheme in Massive MIMO Networks.

In this letter, we propose a novel pilot assignment scheme for the pilot contamination problem in massive multiple-input multiple-output multi-cell networks. Based on the asymptotic signal-to-interference-plus-noise ratio (SINR), the proposed pilot assignment scheme adopts the harmonic SINR utility function to quantify the fairness of all users in the network. Specifically, we formulate the pilot ...