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In cellular systems, user throughput estimation is needed for cell-site selection, handover design, etc. This letter introduces long-term average user throughput estimation methods for the proportional fair (PF) scheduling algorithm under multiple-input multiple-output (MIMO) channel environments. From the observation that the current data rate divided by the long-term average throughput of each user...
In this paper, we introduce a full-duplex relay (FDR) based on block diagonalization (BD) and analyze the corresponding sum rate in a multiantenna multiuser relay system. The poposed precoding scheme can suppress the self-interference as well as to support multiple users at the same time slot. Simulation results show that the proposed FDR scheme enhances significantly the sum rate performance compared...
In this paper, we propose a relay system based on the interference alignment (IA) and block diagonalization (BD), and analyze the corresponding sum rate in a multiantenna multiuser channel. IA can suppress the intercell interference, which means that IA achieves the degree of freedom. Moreover, BD can eliminate multiuser interference and support multiple users at the same time. Simulation results...
The capacity of downlink multi-input multi-output (MIMO) systems is significantly limited by inter-cell co-channel interference (CCI). Improving the performance of cell edge users who suffers strong inter-cell CCI is still a crucial issue. In this paper, coordinated beamforming (CBF) algorithm for multicell multiuser MIMO system is proposed to cope with the presence of intel-cell CCI. In multicell...
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