Research Article
The Performance of SLNR Beamformers in Multi-user MIMO Systems
@INPROCEEDINGS{10.1007/978-3-030-05195-2_40, author={Khalid Hameed and Ahmed Abdulkhaleq and Yasir Al-Yasir and Naser Ojaroudi Parchin and Ashwain Rayit and Majid Khambashi and Raed Abd-Alhameed and James Noras}, title={The Performance of SLNR Beamformers in Multi-user MIMO Systems}, proceedings={Broadband Communications, Networks, and Systems. 9th International EAI Conference, Broadnets 2018, Faro, Portugal, September 19--20, 2018, Proceedings}, proceedings_a={BROADNETS}, year={2019}, month={1}, keywords={Beamforming Generalized eigenvalue decomposition MU-MIMO Optimal point SLNR}, doi={10.1007/978-3-030-05195-2_40} }- Khalid Hameed
Ahmed Abdulkhaleq
Yasir Al-Yasir
Naser Ojaroudi Parchin
Ashwain Rayit
Majid Khambashi
Raed Abd-Alhameed
James Noras
Year: 2019
The Performance of SLNR Beamformers in Multi-user MIMO Systems
BROADNETS
Springer
DOI: 10.1007/978-3-030-05195-2_40
Abstract
Beamforming in multi-user MIMO (MU-MIMO) systems is a vital part of modern wireless communication systems. Researchers looking for best operational performance normally optimize the problem and then solve for best weight solutions. The weight optimization problem contains variables in numerator and dominator: this leads to so-called variable coupling, making the problem hard to solve. Formulating the optimization in terms of the signal to leakage and noise ratio (SLNR) helps in decoupling the problem variables. In this paper we study the performance of the SLNR with variable numbers of users and handset antennas. The results show that there is an optimum and the capacity curve is a concave over these two parameters. The performances of two further variations of this method are also considered.