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- W2743249539 abstract "In a heterogeneous cellular network (HetNet), consider that a base station in the HetNet is able to simultaneously schedule and serve K users in the downlink by performing the power-domain non-orthogonal multiple access (NOMA) scheme. This paper aims at the preliminary study on the downlink coverage and throughput performances of the HetNet with the non-cooperative and the (proposed) cooperative NOMA schemes. First, the coverage probability and link throughput of K users in each cell are studied and their accurate expressions are derived for the non-cooperative NOMA scheme in which no BSs are coordinated to jointly transmit the NOMA signals for a particular user. We show that the coverage and link throughput can be largely reduced if transmit power allocations among the K users do not satisfy the constraint derived. Next, we analyze the coverage and link throughput of K users for the cooperative NOMA scheme in which the void BSs without users are coordinated to enhance the farthest NOMA user in a cell. The derived accurate results show that cooperative NOMA can significantly improve the coverage and link throughput of all users. Finally, we show that there exist optimal power allocation schemes that maximize the average cell coverage and throughput under some derived power allocation constraints and numerical results validate our analytical findings." @default.
- W2743249539 created "2017-08-17" @default.
- W2743249539 creator A5040514646 @default.
- W2743249539 creator A5084900180 @default.
- W2743249539 date "2017-08-09" @default.
- W2743249539 modified "2023-09-25" @default.
- W2743249539 title "Heterogeneous Networks with Power-Domain NOMA: Coverage, Throughput and Power Allocation Analysis" @default.
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- W2743249539 doi "https://doi.org/10.48550/arxiv.1708.03065" @default.
- W2743249539 hasPublicationYear "2017" @default.
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