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In this paper, we derive the optimal source and relay matrices of a multicarrier multi-hop multiple-input multiple-output (MIMO) relay system that guarantee the predetermined quality-of-service (QoS) criteria be attained with the minimal total transmission power. We consider the linear minimal mean-squared error (MMSE) receiver at the destination node and show that the solution to the original optimization...
We design a linear transceiver in the downlink for a spectrum sharing multiuser multiple-input-multiple-output (MIMO) networks. This linear transceiver ensures that the required quality of service (QoS) is achieved at each user while satisfying the interference constraints on the primary users. Here, certain predefined throughput is considered as a QoS requirement for each user. The original QoS based...
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