Scheduling and Precoding in Hybrid Analog-Digital Multiantenna Spectrum Sharing Systems
Authors/Creators
- 1. Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
- 2. Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Universitat Politècnica de Catalunya (UPC)
- 3. University of Padova
- 4. Universidad Carlos III
Description
This paper investigates scheduling and precoding techniques via hybrid analog-digital transmitters in mm-wave frequency bands. As in spectrum sharing sub-6GHz scenarios, the presence of non-intended receivers limits the overall achievable rates. In order to circumvent this problem, we propose a scheduling and precoding algorithm able to maximize the sumrate while keeping the interference to the external users under a certain threshold. The method consists of a first scheduling algorithm followed by the optimization of the analog and digital beamforming parts. Numerical simulations validate the conceived technique and they show that data rates are increased compared
to current designs.