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In this study, an energy harvesting (EH)-based cooperative non-orthogonal multiple access (NOMA) system is considered, where node S simultaneously sends independent signals to a stronger node R and a weaker node D. The authors focus on the scenario that the direct link between S and D is too weak to meet the quality of service (QoS) of D. Based on the NOMA principle, R, the stronger user, has prior...
In this paper, heterogeneous services in multiuser multiple-input multiple-output (MIMO)-Relay systems are investigated, where the relays work in amplify-and-forward mode. A utility based adaptive scheduling algorithm is proposed, which aims to maximize user satisfaction as well as system spectral efficiency. Joint optimal carriers and spatial subchannels allocation is considered based on the proposed...
In cellular network, dropping probability of handoff calls (Pd) and blocking probability of new calls (Pb) are two important QoS measures. In this paper, focusing on the problem of how to minimize blocking probability of new calls with guaranteed dropping probability of handoff calls, a new priority queueing policy with finite queue size is proposed. And a two-steps algorithm is developed for optimizing...
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