Research Article
Analysis and Management of Interference in 5G Reverse TDD HetNets
@INPROCEEDINGS{10.4108/icst.5gu.2014.258124, author={Luca Sanguinetti and Aris Moustakas and Merouane Debbah}, title={Analysis and Management of Interference in 5G Reverse TDD HetNets}, proceedings={1st International Conference on 5G for Ubiquitous Connectivity}, publisher={IEEE}, proceedings_a={5GU}, year={2014}, month={12}, keywords={hetnets massive mimo small-cells wireless backhaul imperfect channel state information}, doi={10.4108/icst.5gu.2014.258124} }- Luca Sanguinetti
Aris Moustakas
Merouane Debbah
Year: 2014
Analysis and Management of Interference in 5G Reverse TDD HetNets
5GU
IEEE
DOI: 10.4108/icst.5gu.2014.258124
Abstract
This work analyzes a heterogeneous network (Het- Net), 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 (TDD) protocol 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. A 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.