Integrating Broadcasting and NOMA in Full-Duplex Buffer-Aided Opportunistic Relay Networks

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.

Keywords

Non-orthogonal multiple access, Full-duplex, Buffer-aided relaying, Broadcasting, Relay selection, Nonorthogonal Multiple-Access, Performance Analysis, Cooperative Noma, Selection, Systems, Power

DOI

10.1109/TVT.2020.2999655

Citation

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

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https://urn.fi/URN:NBN:fi:aalto-202009115382

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[article-cris] Sähkötekniikan korkeakoulu / ELEC

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Integrating Broadcasting and NOMA in Full-Duplex Buffer-Aided Opportunistic Relay Networks

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