October 20, 2016
Practical Hardware Considerations for the Design of Hybrid Precoding Systems
- Garcia Rodriguez A.
- Rulikowski P.
- Venkateswaran V.
In this paper we describe practical implications of employing communication schemes with analog beamforming networks (ABFN). Specifically, we formulate realistic constraints for standard ABFN based on the S-parameters of the hardware components involved in their implementation. We concentrate on flexible fully-connected ABFN and Butler networks for im- plementing the discrete Fourier transform (DFT) in the analog domain. The results presented in this paper show that both the performance and the energy efficiency (EE) of conventional hy- brid precoding designs are severely affected when the additional power losses introduced by practical ABFN are accounted for.View Original Article