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• W2754638417 abstract "We consider joint optimization of user-to-base-station (BS) association, and time-frequency resource block (RB) and power allocation in heterogeneous networks (HetNets). The objective is to develop a design: 1) that maximizes the number of users accommodated in the network while satisfying their quality of service demands and 2) that minimizes usage of the resources required to meet these demands. We investigate two novel instances of HetNets with opportunistic RB-reuse. In the first instance, user-to-BS associations and power allocations can be time-shared, and the RBs can be reused during the signaling interval. For this instance, it is shown that the design problem can be approximated by a problem that yields tight convex upper and lower bounds on the objective. In contrast, the second instance represents a case in which the RBs can be reused, but the user-to-BS associations and power allocations are not time-shared, and hence, fixed throughout the signaling interval. The latter case gives rise to a combinatorial optimization problem, which we provide an approximate solution for by using a polynomial-complexity two-phase approach based on semidefinite relaxation with randomization." @default.
• W2754638417 created "2017-09-25" @default.
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• W2754638417 date "2017-11-01" @default.
• W2754638417 modified "2023-09-24" @default.
• W2754638417 title "A Novel Approach for QoS-Aware Joint User Association, Resource Block and Discrete Power Allocation in HetNets" @default.
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• W2754638417 doi "https://doi.org/10.1109/twc.2017.2751467" @default.
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