Downlink channel analysis at multi-cell massive MIMO: novel adaptive channel allocation scheme

In large multiple-input multiple-output (MIMO) systems, we offer a new access strategy for crowd situations. Crowd situations include high number users who have intermittent patterns, making orthogonal scheduling impossible. this paper, the work is driven by massive MIMO problem at crowded environment. The pilot contamination dependent on protocol assumptions observed in system. We investigate situation which and their behaviours make broadcasts assignment time-slot randomized, but data portion repeated, allowing it to use successive-interference-cancellation across copies of comparable packets. result analysis, transmission downlink user has shown with changing users, fading effect, power base station antennas.