1. Integrating Broadcasting and NOMA in Full-Duplex Buffer-Aided Opportunistic Relay Networks.
- Author
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Nomikos, Nikolaos, Charalambous, Themistoklis, Vouyioukas, Demosthenes, Wichman, Risto, and Karagiannidis, George K.
- Subjects
BROADCASTING industry ,NETWORK performance ,ALGORITHMS ,ERROR probability ,SIGNAL-to-noise ratio ,END-to-end delay ,MULTIPLE access protocols (Computer network protocols) - 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 $\mathop {\mathrm{BAHyNOMA}}$ , orchestrating the three aforementioned techniques, towards a simple yet efficient and robust relay selection. $\mathop {\mathrm{BAHyNOMA}}$ 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. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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