Analysis and Management of Interference in 5G Reverse TDD HetNetsReport as inadecuate

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1 University of Pisa Pisa 2 Chaire Radio Flexible - Chaire Radio Flexible Alcatel-Lucent-Supélec 3 UoA - University of Athens 4 Mathematical and Algorithmic Sciences Lab Paris

Abstract : This work analyzes a heterogeneous network HetNet, which comprises a macro base station BS equipped with a large number of antennas and an overlaid dense tier of small cell access points SCAs using a wireless backhaul for data traffic. The static and low mobility user equipments UEs are associated with the SCAs while those with medium-to-high mobility are served by the macro BS. A reverse time division duplexing TDDprotocol is used by the two tiers. We evaluate and characterize the performance of the system through the power consumption of uplink UL and downlink DL transmissions under the assumption that target rates must be satisfied and imperfect channel state information is available. The large system analysis is used to provide concise formulae for the asymptotic UL and DL transmit powers and precoding vectors under the above assumptions. Numerical results are used to validate the analysis in different settings and to make comparisons with alternative network architectures.

Author: Luca Sanguinetti - Aris Moustakas - Mérouane Debbah -



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