Energy and spectral efficiency tradeoff with user association and power coordination in massive MIMO enabled HetNets

Hao, Yuanyuan and Ni, Qiang and Li, Hai and Hou, Shujuan (2016) Energy and spectral efficiency tradeoff with user association and power coordination in massive MIMO enabled HetNets. IEEE Communications Letters, 20 (10). pp. 2091-2094. ISSN 1089-7798

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In this letter, we investigate the tradeoff between energy efficiency (EE) and spectral efficiency (SE) while ensuring proportional rate fairness in massive multiple-input multiple-output enabled heterogenous networks, where user association and power coordination are jointly considered. It is first formulated as a multi-objective optimization problem, and then transformed into a single-objective optimization problem. To solve this mixed-integer non-convex problem, an effective algorithm is developed, where the original problem is separated into lower level power coordination problem and master user association problem. Simulation results verify that our proposed algorithm can significantly improve the performance of EE-SE tradeoff and obtain higher rate fairness compared with other algorithms.

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Journal Article
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IEEE Communications Letters
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Uncontrolled Keywords:
?? mimo communicationenergy conservationtelecommunication power managementenergy efficiencymassive mimo enabled hetnetsmulti-objective optimizationmultiple-input multiple-output enabled heterogenous networkspower coordinationsingle-objective optimizationspec ??
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22 Nov 2016 08:48
Last Modified:
10 Jan 2024 00:21