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Integrating Broadcasting and NOMA in Full-Duplex Buffer-Aided Opportunistic Relay Networks
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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6
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IEEE Transactions on Vehicular Technology, Volume 69, issue 8, pp. 9157-9162
Abstract
This paper proposes the integration of non-orthogonal multiple access (NOMA) and broadcasting with buffer-aided (BA) full-duplex (FD) relaying to improve the spectral efficiency of a single-source two-user network. Furthermore, opportunistic relay selection is employed, activating one or two FD relays to support the end-to-end communication. The network performance is improved through buffers, allowing to switch to half-duplex (HD) transmission/reception when FD operation is not feasible. A hybrid BA FD/HD NOMA relay selection algorithm is proposed, herein called BAHyNOMA, orchestrating the three aforementioned techniques, towards a simple yet efficient and robust relay selection. BAHyNOMA is evaluated in terms of outage probability, average sum-rate and average delay, and it is observed that the average sum-rate can be doubled, while maintaining low latency.
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Nomikos, N, Charalambous, T, Vouyioukas, D, Wichman, R & Karagiannidis, G K 2020, 'Integrating Broadcasting and NOMA in Full-Duplex Buffer-Aided Opportunistic Relay Networks', IEEE Transactions on Vehicular Technology, vol. 69, no. 8, 9107483, pp. 9157-9162. https://doi.org/10.1109/TVT.2020.2999655