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In this paper, we discuss a multiuser multiple-input multiple-output (MIMO) relay system with direct link based on ordered Tomlinson-Harashima precoding (THP). THP with fairness-guaranteed power loading is applied with both zero-forcing (ZF) and minimum mean square error (MMSE) criteria. The direct and relay links are combined to obtain the diversity gain. The maximum ratio combining (MRC) weights...
In the OFDMA-based cellular relay networks, relay selection and resource allocation are the main problem to be solved. Many present works about resource allocation are for the goal of throughput maximization. In this paper, we propose an adaptive resources allocation algorithm joint relay selection, sub-carrier assignment and power allocation for the goal of energy saving to ensure users' QoS, and...
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