OPTIMAL PAIR-WISE SUS ALGORITHM AS PROPORTIONAL FAIR ALGORITHM FOR MU-MIMO-OFDM SYSTEMS

Aleksandra Panajotović, Daniela Milović

DOI Number
https://doi.org/10.22190/FUACR2001011P
First page
011
Last page
020

Abstract


In this paper, we research proportional fairness of the optimal pair-wise semi-orthogonal user selection (SUS) algorithm used in the MU-MIMO-OFDM system compliant with IEEE 802.11ac standard. Zero-forcing beamforming (ZFBF) is applied in the system as a precoding technique in order to cancel user interferences. Two different scenarios are considered: homogeneous and heterogeneous. Beside the proportional fairness, a throughput performance of the MU-MIMO-OFDM system is analyzed for both scenarios too. Simulation results show that the optimal pair-wise SUS algorithm is an excellent solution to realize the trade-off between the proportional fairness among users and the achieved system throughput.


Keywords

MU-MIMO, OFDM, IEEE 802.11ac, ZFBF, SUS algorithm, FLA algorithm

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References


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DOI: https://doi.org/10.22190/FUACR2001011P

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