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This paper aims to solve the problem that the cognitive base station (CBS) minimizes the BER and maximizes the sum capacity in the condition of the interference constraint for the primary users (PUs). The main contribution of this paper is applying three kinds of THP algorithm in the multiple user multi-input multi-output (MU-MIMO) system to cognitive radio (CR) network by using matrix decomposition...
Multi-Service channel allocation supporting video service and data service simultaneously for frequency/time slotted cognitive radio (CR) networks is addressed. Our objective is to maximize the total network throughput while guaranteeing quality of service (QoS) requirements of both services. Meanwhile, the optimization problem is formulated into a non-linear integer programming problem. For this,...
In cognitive radio network (CRN), secondary users (SU) can share the licensed spectrum with the primary users (PU). Compared with the traditional network, spectrum utilization in CRN will be greatly improved. In order to ensure the performance of SUs as well as PU, wireless relaying can be employed to improve the system capacity. Meanwhile, quality-of-experience (QoE) should be considered and provisioned...
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