Joint User Association and Power Allocation for Massive MIMO HetNets with Imperfect CSI
Signal Processing(2020)
摘要
•A new closed-form lower bound expression is derived for the ergodic achievable rate.•α-fairness problem includes the proportional fairness and the max-min fairness.•Joint two-layer iterative algorithm improves the α-fairness network utility performance.
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关键词
Massive MIMO,HetNets,User association,Power allocation,Imperfect CSI
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