Optimal Pair-wise SUS Algorithm in Adaptive UCD-based MU-MIMO-OFDM

In this paper, users are selected using an optimal pair-wise semi-orthogonal users selection (SUS) scheduling algorithm, while uniform channel decomposition (UCD) is applied to allocate appropriate number of per-user subchannels in order to achieve as higher throughput as possible. Simulation results in the context of IEEE 802.11ac confirm advantage of the proposed combination in term of throughput. Namely, slightly throughput improvement is achieved even for small and moderate signal-to-noise ratios (SNRs), while more significant improvement is realized for very high SNRs.