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A Review on Power Allocation Techniques in MIMO-NOMA 5G Systems


B. Sruthi and T. Sudha
Abstract

Fifth Generation (5G) is the upcoming digital cellular network which is expected to possess features such as Peak Data Rate, network capacity, User plane latency and spectrum sharing. Multiple Input Multiple Output (MIMO) is the multiple antenna technology which exploits spatial domain multiplexing which improves the spectral efficiency of wireless communications. NOMA (Non Orthogonal Multiple Access) is a novel multiple access solution for 5G to break the stringent requirement of orthogonality in the conventional OMA technologies. That is users are distinguished by the power levels. MIMO offers excessive degree of freedom to further improve the system throughput and capacity when it is combined with NOMA. Power control/allocation in MIMO NOMA is of significant importance as inappropriate power assignment for users causes additional interference, it will inevitably increase the overall power consumption and thus destroy the system performance.

Volume 12 | 04-Special Issue

Pages: 1409-1415

DOI: 10.5373/JARDCS/V12SP4/20201619